Best 20 French Onion Soup Recipes

CLASSIC FRENCH ONION SOUP

Steps:

• In a Dutch oven, heat 2 tablespoons oil and butter over medium heat. Add onions; cook and stir until softened, 10-13 minutes. Reduce heat to medium-low; cook, stirring occasionally, until deep golden brown, 30-40 minutes. Add minced garlic; cook 2 minutes longer., Stir in wine. Bring to a boil; cook until liquid is reduced by half. Add broth, pepper and salt; return to a boil. Reduce heat. Simmer, covered, stirring occasionally, for 1 hour. , Meanwhile, preheat oven to 400°. Place baguette slices on a baking sheet; brush both sides with remaining 3 tablespoons oil. Bake until toasted, 3-5 minutes on each side. Rub toasts with halved garlic. , To serve, place twelve 8-oz. broiler-safe bowls or ramekins on baking sheets; place 2 toasts in each. Ladle with soup; top with cheese. Broil 4 in. from heat until cheese is melted.

FRENCH ONION SOUP

Steps:

• Melt the stick of butter in a large pot over medium heat. Add the onions, garlic, bay leaves, thyme, and salt and pepper and cook until the onions are very soft and caramelized, about 25 minutes. Add the wine, bring to a boil, reduce the heat and simmer until the wine has evaporated and the onions are dry, about 5 minutes. Discard the bay leaves and thyme sprigs. Dust the onions with the flour and give them a stir. Turn the heat down to medium low so the flour doesn't burn, and cook for 10 minutes to cook out the raw flour taste. Now add the beef broth, bring the soup back to a simmer, and cook for 10 minutes. Season, to taste, with salt and pepper.
• When you're ready to eat, preheat the broiler. Arrange the baguette slices on a baking sheet in a single layer. Sprinkle the slices with the Gruyere and broil until bubbly and golden brown, 3 to 5 minutes.
• Ladle the soup in bowls and float several of the Gruyere croutons on top.
• Alternative method: Ladle the soup into bowls, top each with 2 slices of bread and top with cheese. Put the bowls into the oven to toast the bread and melt the cheese.

RESTAURANT-STYLE FRENCH ONION SOUP

Steps:

• Melt butter in a large soup pot over medium heat. Cook and stir onions, garlic, salt, black pepper, and thyme until onions are soft and brown, about 30 minutes. Pour in red wine and sherry; bring to a boil. Reduce heat to low and simmer until you can no longer smell alcohol cooking off, about 15 more minutes.
• Sprinkle onion mixture with flour and stir until coated; cook for 10 minutes. Pour in broth, stir to blend in flour, and simmer until slightly thickened, about 20 minutes.
• Preheat oven to 350 degrees F (175 degrees C) while soup is simmering. Arrange bread slices on a baking sheet and drizzle with olive oil.
• Toast the baguette slices in the preheated oven until golden brown, 12 to 14 minutes, turning the bread over halfway through cooking. Remove toast and set aside.
• Set an oven rack about 8 inches from the heat source and turn on the oven's broiler.
• Ladle soup into 6 oven-proof crocks, filling them about 3/4 full. Place 1 or 2 bread slices into the bowls and top each with a slice of Swiss cheese and a slice of provolone. Carefully place filled crocks onto a sturdy baking sheet.
• Broil soup until the cheese is browned and bubbling, 3 to 4 minutes.

RICH AND SIMPLE FRENCH ONION SOUP

Steps:

• Melt butter with olive oil in an 8 quart stock pot on medium heat. Add onions and continually stir until tender and translucent. Do not brown the onions.
• Add beef broth, sherry and thyme. Season with salt and pepper, and simmer for 30 minutes.
• Heat the oven broiler.
• Ladle soup into oven safe serving bowls and place one slice of bread on top of each (bread may be broken into pieces if you prefer). Layer each slice of bread with a slice of provolone, 1/2 slice diced Swiss and 1 tablespoon Parmesan cheese. Place bowls on cookie sheet and broil in the preheated oven until cheese bubbles and browns slightly.

FRENCH ONION SOUP RECIPE BY TASTY

Steps:

• In a large pot over medium-low heat, heat olive oil and add butter. Once the butter is melted, stir the onions and coat with oil and butter.
• Cover and cook for 20 minutes, checking occasionally.
• Turn up the heat to medium-high. Add ½ tsp salt and sugar. Stir and keep cooking until onions are brown and caramelized. (the bottom of the pan will develop some browning, it's very important!)
• Stir in flour one tablespoon at a time and cook for about 30 seconds.
• Preheat Oven To 325˚F (160˚C).
• Add 1 cup (235 ml) of the beef broth. Use a whisk to scrape up (deglaze) the browned bits stuck on the bottom of the pan.
• Add the remaining five cups of beef stock, wine, sage and bay leaf. Bring to a boil. Reduce heat and simmer, uncovered, for 40 minutes.
• In the meantime, cut the french bread or baguette into ½ inch (10 mm) thick pieces. Brush with oil on both sides and bake at 325˚F (160˚C) for 30 minutes, flipping halfway. Once they are done, increase oven temperature to 350˚F (175˚C).
• Add optional ingredients.
• In an oven safe bowl, pour the onion soup, filling about ¾ of the way full. Top with a piece of baked french bread, and generously sprinkle swiss and parmesan on top.
• Bake for two to three minutes or until the cheese has melted completely and become slightly golden.
• Enjoy!

SLOW COOKER FRENCH ONION SOUP

Steps:

• Heat butter in a large, heavy pot over medium-high heat; cook and stir onions until they become translucent, about 10 minutes. Sprinkle onions with sugar; reduce heat to medium. Cook, stirring constantly, until onions are soft and browned, at least 30 minutes. Stir in garlic and cook until fragrant, about 1 minute.
• Stir sherry into onion mixture and scrape bottom of pot to dissolve small bits of browned food from the pot. Transfer onions into a slow cooker and pour in beef broth. Season to taste with sea salt; stir in thyme and bay leaf. Cover cooker, set on High, and cook 4 to 6 hours. If desired, set on Low and cook 8 to 10 hours.
• About 10 minutes before serving, set oven rack about 8 inches from the heat source and preheat the oven's broiler. Arrange bread slices on a baking sheet.
• Broil bread slices until toasted, 1 to 2 minutes per side.
• Combine Gruyere, Emmental, Parmesan, and mozzarella cheeses in a bowl, tossing lightly. Fill oven-safe soup crocks 3/4 full of onion soup and float a bread slice in each bowl. Top with about 2 tablespoons of cheese mixture per serving.
• Place filled bowls onto a baking sheet and broil until cheese topping is lightly browned and bubbling, about 2 minutes.

FRENCH ONION SOUP GRATINEE

Steps:

• Melt butter in a large pot over medium-high heat. Stir in salt, red onions and sweet onions. Cook 35 minutes, stirring frequently, until onions are caramelized and almost syrupy.
• Mix chicken broth, beef broth, red wine and Worcestershire sauce into pot. Bundle the parsley, thyme, and bay leaf with twine and place in pot. Simmer over medium heat for 20 minutes, stirring occasionally. Remove and discard the herbs. Reduce the heat to low, mix in vinegar and season with salt and pepper. Cover and keep over low heat to stay hot while you prepare the bread.
• Preheat oven broiler. Arrange bread slices on a baking sheet and broil 3 minutes, turning once, until well toasted on both sides. Remove from heat; do not turn off broiler.
• Arrange 4 large oven safe bowls or crocks on a rimmed baking sheet. Fill each bowl 2/3 full with hot soup. Top each bowl with 1 slice toasted bread, 2 slice Gruyere cheese and 1/4 of the Asiago or mozzarella cheese. Sprinkle a little bit of paprika over the top of each one.
• Broil 5 minutes, or until bubbly and golden brown. As it softens, the cheese will cascade over the sides of the crock and form a beautifully melted crusty seal. Serve immediately!

EASY FRENCH ONION SOUP

Steps:

• Place onions and butter in saucepan.
• Sauté on medium heat until onions are tender.
• Add garlic and sauté 1-2 minutes (don't let garlic burn).
• Add beef broth, consomme, and Woschershire sauce.
• Bring to a boil for 1 minute.
• Take ovenproof bowls (I use over-sized coffee mugs) and place 0.125 cup of cheese in bottom of each bowl.
• Fill bowl with soup leaving room at the top.
• Place toasted French bread on top.
• Top with 0.125 cup Swiss cheese.
• Place under broiler until cheese is bubbly.
• Serve immediately.
• Caution--bowls will be hot!

AUTHENTIC FRENCH ONION SOUP COURTESY OF JULIA CHILD

Steps:

• Place heavy bottom stock pot or dutch over over medium-low heat.
• Add 1 Tbs cooking oil, 2Tbs butter to pot.
• Add sliced onions and stir until they are evenly coated with the oil.
• Cover and cook for about 20 minutes until they are very tender and translucent.
• To brown or caramelize the onions turn heat under pot to medium or medium high heat.
• Add 1/2 tsp sugar and 1 tsp salt and continue to cook uncovered, stirring frequently until the onions have browned and reduced significantly.
• Once caramelized, reduce heat to medium-low and add 3 Tbs flour to the onions.
• Brown the flour for about 2-3 minutes trying not to scorch it. (If the flour does not form a thick paste, you can add a bit more butter here).
• Stir in about 1 cup of warm stock, scraping the bottom of the pan to get up all of the cooked-on bits.
• Add the rest of the stock, wine to the soup.
• Simmer for 30 minutes.
• To make the "croutes" (toasted bread), heat oven to 325 degrees F.
• Drizzle each side of the bread slices with a bit of olive oil and place on baking sheet.
• Cook the croutes for 15 minutes in oven on each side (30 minutes total).
• Check the soup for seasoning and add salt and pepper if needed.
• Transfer to a casserole dish.
• At this point you can add the 2-3 Tbs cognac and grate the 1/2 raw onion into the soup.
• Add a few ounces of the swiss cheese directly into the soup and stir.
• Place the toasted bread in a single layer on top of the soup.
• Sprinkle the rest of the cheese in a thick layer on top of the bread making sure to cover the edges of the toast to prevent burning.
• Drizzle with a little oil or melted butter.
• Place in a 350 degree oven for about 30 minutes.
• Turn on broiler and brown cheese well.
• Let cool for a few minutes.
• Bon Apetit!

SLOW-COOKED FRENCH ONION SOUP

Steps:

• Place butter in a 5-qt. slow cooker. Top with sweet and red onions; sprinkle with pepper. Cook, covered, on low until onions are tender, 5-6 hours., Stir in broth, water, wine, herbs and Worcestershire sauce. Cook, covered, on low until flavors are blended, 2-3 hours. Remove herb sprigs and bay leaf., To serve, preheat broiler. Place bread on a baking sheet; broil 4 in. from heat until lightly toasted, 1-2 minutes per side. Top bread with cheese; broil until cheese is melted, 1-2 minutes. Divide soup among eight bowls; top with cheese toasts and serve immediately.

SLOW-COOKER FRENCH ONION SOUP

Steps:

• Place Reynolds™ Slow Cooker Liners inside a 5- to 6 1/2 -qt slow cooker bowl. Make sure that liner fits snugly against the bottom and sides of bowl and pull the top of the liner over rim of bowl.
• In lined slow cooker, mix onions and margarine.
• Cover and cook on high heat setting 30 to 35 minutes or until onions begin to slightly brown around edges.
• Mix flour, Worcestershire sauce, sugar and pepper. Stir flour mixture and broth into onions. Cover and cook on low heat setting 7 to 9 hours (or high heat setting 3 to 4 hours) or until onions are very tender.
• Prepare Cheesy Broiled French Bread. Place 1 slice bread on top of each bowl of soup. Serve immediately.

BEST EVER FRENCH ONION SOUP

Steps:

• SOUP: In dutch oven, melt butter over medium heat. Add onions and salt, cover and cook until softened, stirring occasionally about 15 minutes. Uncover and cook until caramelized, about 30 minutes more.
• Stir in flour; cook 2 minutes. Stir in remaining ingredients. Simmer, partially covered about 30 minutes. Remove bay leaf. Cool and refrigerate till next day.
• CROUTON BREAD SLICES: Preheat oven to 375°F Mix olive oil with garlic powder and brush both sides of bread slices with the oil mixture. Place on baking sheet and bake 12 minutes, turning once, until bread is slightly toasted. Set aside.
• TO SERVE: Preheat broiler. On stovetop, heat soup to a simmer. Ladle soup into 4 broiler safe bowls. Top with french bread slices and cheese. Place bowls on baking sheet and broil 4" from heat until cheese is bubbly. about 2 minutes. Garnish with fresh chopped parsley.
• PASTRY PUFF VARIATION: Preheat the oven to 400°F Roll out one sheet of puff pastry and sprinkle with half the Gruyere cheese, fold into 3 and roll out again. Cut out 4 lids. Divide the soup among ovenproof soup bowls. Sprinkle the remaining cheese on top of soup and cover with the pastry lids with a little egg wash seal. Bake the soup in the oven for 15 minutes or until the cheesy puff pastry is golden in colour and well risen.

FRENCH ONION SOUP

Steps:

• Peel and cut the onions into slices to measure 4 cups. In a 4-quart nonstick Dutch oven, melt the butter over medium-high heat. Stir in onions to coat with butter. Cook uncovered 10 minutes, stirring every 3 to 4 minutes.
• Reduce heat to medium-low. Cook uncovered 35 to 40 minutes longer, stirring well every 5 minutes, until onions are deep golden brown (onions will shrink during cooking).
• Stir in broth, water, pepper, thyme and bay leaf. Heat to boiling over high heat. Once mixture is boiling, reduce heat just enough so mixture bubbles gently. Cover with lid; simmer 15 minutes. Meanwhile, shred the Gruyère cheese by rubbing it across the largest holes of a grater to measure 1 cup; set aside.
• You may need to move the oven rack so it is near the broiler. Set the oven control to broil. On a cookie sheet, place the bread slices. Broil with tops about 5 inches from heat 1 to 2 minutes or until golden brown. Turn bread over; broil 1 to 2 minutes longer until golden brown. Place toasted bread in 4 ovenproof bowls or individual ceramic casseroles (do not use glass, which cannot withstand heat of broiler and may break).
• Remove bay leaf from soup. Ladle soup into bowls. Top with Gruyère cheese. Sprinkle with Parmesan cheese. Place bowls in pan with shallow sides.
• Broil soup bowls with tops about 5 inches from heat 1 to 2 minutes or just until cheese is melted and golden brown. Watch carefully so cheese does not burn. Serve with additional French bread if desired.

OUR FAVORITE FRENCH ONION SOUP

Steps:

• In a large Dutch oven or other large pot, melt 3 tablespoons butter over medium heat. Add the oil and onions; cook onions are until softened, stirring occasionally, about 15 minutes. Add the salt, pepper, and sugar; continue to cook, stirring occasionally, until onions are deep golden brown and caramelized, reducing heat slightly if onions seem to be browning too quickly, 35 to 45 minutes more.
• Add wine and raise heat to high. Cook until almost all liquid has evaporated, 8 to 10 minutes.
• Tie thyme and bay leaves into a bundle with twine. Add broth and herb bundle to pot with onions. Bring to a boil, reduce to a simmer, and cook, uncovered, until broth is thickened and flavorful, 20 to 30 minutes. Remove from heat and whisk in remaining 2 tablespoons butter. Taste and adjust seasoning.
• Heat the broiler. Cut two 1/2-inch baguette slices for every serving of soup. Place baguette slices on a rimmed baking sheet and toast in oven until crisp and dry but not browned, about 1 minute per side. Rub one side of each toast with the garlic clove and set aside.
• Place ramekins or ovensafe bowls on a rimmed baking sheet, add 1/2 teaspoon of sherry to the bottom of each, and ladle soup on top. Top each serving of soup with two garlic-rubbed toasts. Divide cheese among the servings, covering the bread and some of the soup. Carefully transfer baking sheet to oven and broil until cheese is melted and bubbling, 4 to 8 minutes. (Alternatively, if using regular soup bowls: Top each garlic-rubbed toast with some cheese and return to broiler to melt, about 2 minutes more. Divide sherry and soup among bowls, sprinkle with remaining cheese, and top each serving with two cheese toasts.)

HOMEMADE FRENCH ONION SOUP

Steps:

• Melt butter and olive oil in a large Dutch oven or heavy pot over medium heat. Add onions. Spread them out in as thin a layer as possible. Sprinkle with sugar, and cook, stirring as needed to keep onions from sticking, until they are melting and soft, golden brown, and beginning to caramelize, about 1 hour.
• Sprinkle flour over onions, and stir to coat. Add sherry, stock, and thyme, and bring to a simmer. Cook, partially covered, for about 30 minutes, to allow the flavors to combine. Season with salt and pepper to taste.
• Meanwhile, preheat broiler. Arrange bread on a rimmed baking sheet and broil until deep-golden brown on both sides, about 1 to 2 minutes per side; set aside.
• Ladle 1 cup hot soup into four 13-ounce ramekins or ovenproof bowls. Arrange the bowls on a rimmed baked sheet. Place 2 slices of toasted bread over each bowl of soup to cover the surface of the soup completely. Sprinkle 3 ounces grated cheese over bread in each bowl, and place under broiler until cheese is melted and crusty brown around the edges. Watch carefully that bread doesn't burn. Serve immediately.

CARAMELIZED FRENCH ONION SOUP

Steps:

• In a saucepan, saute onion in butter until tender. Sprinkle with sugar and Worcestershire sauce; cook and stir for 13-15 minutes or until onion is caramelized. , Add the broth, wine or water and pepper. Bring to a boil. Reduce heat; cover and simmer for 15 minutes., Place bread on an ungreased baking sheet. Broil 4 in. from the heat until toasted. Turn; sprinkle with cheeses. Broil until cheese is melted and bubbly. Ladle soup into bowls; top with toast.

SLOW-COOKER FRENCH ONION SOUP

Steps:

• Place onions and butter in a 1-1/2-qt. slow cooker coated with cooking spray. Cover and cook on low for 6 hours or until onions are tender. Stir in the broth, sherry and pepper. Cover and cook 2-3 hours longer or until heated through. , Ladle soup into ovenproof bowls. Top each with a slice of toast and a slice of cheese. Broil 4-6 in. from the heat for 2-3 minutes or until cheese is melted. Serve immediately.

ONE-POT FRENCH ONION SOUP WITH GARLIC-GRUYèRE CROUTONS

Steps:

• Heat the oil in a 6-quart Dutch oven over high heat. Add the oxtail (or beef shoulder) in a single layer (work in batches, if necessary to avoid crowding the pan), and sear until the undersides are brown (do not turn). Season generously with salt and transfer to a plate.
• Coarsely chop two of the onions; add to the pot, along with the celery, carrots, bay leaves and thyme. Lower heat to medium and cook, stirring occasionally, until vegetables are soft and beginning to caramelize, about 10 minutes. Return the beef to the pot. Pour in 8 cups water. Simmer mixture gently until the meat is very tender, 2 1/2 to 3 hours.
• Transfer beef to a bowl to cool for another use. Strain liquid into a bowl over a fine-mesh sieve; press gently on the solids with the back of a spatula to extract as much flavor as possible. Discard the solids; you should have about 10 cups broth (add water if necessary to equal 10 cups).
• Halve the remaining 6 onions through the root end, then peel and thinly slice them lengthwise. Melt the butter in the bottom of the Dutch oven over medium heat. Add the onions and cook, tossing occasionally, until deep golden-brown and caramelized, 45 minutes to 1 hour. Season with 1 teaspoon salt and black pepper. Pour in the port and cook, scraping up any browned bits from the bottom of the pan, for 3 minutes. Pour in the broth and simmer mixture over low heat for 30 minutes. Season with salt and lemon juice, if desired. (For a smaller group, you could refrigerate some of the soup and reheat it later.)
• While the broth simmers, heat the oven to 350 degrees. Arrange the bread slices on a baking sheet and toast until golden, about 12 minutes. Rub the garlic halves over the surface of the bread.
• Heat the broiler and arrange a rack 4 to 6 inches from the flame. Using a cheese slicer, thinly slice 3 ounces of Gruyère. Coarsely grate the remaining cheese. Float the broiled bread over the surface of the hot soup. Layer the cheese slices over the bread; scatter the grated cheese over it. Transfer the Dutch oven to the oven and broil until cheese is golden and bubbling, 3 to 5 minutes (watch to see that it does not burn).
• To serve, use kitchen shears or scissors to cut the bread and cheese into portions. Ladle soup, bread and cheese into individual bowls.

FRENCH ONION SOUP

Steps:

• Melt butter in a heavy Dutch oven over medium heat. Add onions and 1/2 teaspoon salt, stir and cover, letting onions soften for 5 minutes. Remove lid and let onions caramelize until golden brown over medium heat, stirring occasionally. Adjust heat if onions are browning too quickly. The caramelization process may take 45 to 60 minutes.
• Meanwhile, warm broth in a saucepan over low heat.
• Once onions are caramelized, add wine and sherry to the pot and allow mixture to come to boil. Stir in flour and let thicken for a minute or two.
• Slowly add warm broth, 1/4 teaspoon salt and the pepper to the onion mixture and boil uncovered for 10 minutes. Add more salt and pepper to taste.
• Heat the broiler, and arrange individual ovenproof casseroles on a baking sheet. Ladle soup into casseroles, and cover top with bread slices. Sprinkle each casserole generously with Gruyère. Broil for a minute or two, watching carefully, until cheese melts and browns. Serve immediately.

NINJA FOODI FRENCH ONION SOUP

Steps:

• Press saute function on a large multi-cooker; select vegetables setting. Press timer; set to 30 minutes. Start. Melt butter in inner pot. Add onions; cook and stir until tender and golden, 25-30 minutes. Press cancel., Stir in broth, garlic, thyme, Worcestershire sauce and salt. Lock pressure lid. Press pressure function; select vegetables setting. Set to long cook time (12 minutes). Start. , Quick-release pressure. If desired, stir in brandy. Ladle soup into individual serving crocks. Place wire rack into inner pot. Arrange buttered toast on rack. Top with cheese. Cover with air frying lid. Press air fry function; select custom setting. Press timer; set to 2 minutes. Start. Cook until cheese is melted. Serve toasts over soup.