Best 10 Slow Cooker Onion Soup Recipes

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.

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.

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.

SLOW COOKER ONION SOUP

Steps:

• Melt butter in a skillet over medium heat; cook and stir sweet onion and red onion in melted butter until softened, about 10 minutes. Cook and stir garlic into onion mixture until fragrant, about 2 minutes. Transfer to a slow cooker.
• Pour beef stock, brandy, soy sauce, and Worcestershire sauce into slow cooker. Season with salt and black pepper.
• Cook soup on High for 4 to 5 hours.
• Preheat the oven's broiler and set the oven rack about 6 inches from the heat source.
• Ladle the soup into 3 oven-proof bowls; top with croutons and a slice of Provolone per bowl.
• Broil in the preheated oven until cheese melts and begins to brown, about 3 minutes.

FRENCH ONION SOUP (SLOW COOKER)

Steps:

• Melt butter in a skillet over medium heat. Cook and stir onions in melted butter until clear and browned, 10 to 15 minutes; transfer to a slow cooker. Add beef broth, garlic, salt, and black pepper to the slow cooker.
• Cook on High for 4 hours or on Low for 8 hours.

SLOW-COOKER BEEFY FRENCH ONION SOUP

Steps:

• Toss onions, butter and sugar in 5- to 6-quart slow cooker. Top with bay leaves and beef.
• Cover and cook on low heat setting 9 to 10 hours or until onions are deep brown.
• Stir in beef consommé, sherry, apple juice and thyme. Increase heat setting to high. Cover and cook 10 minutes or until hot. Remove bay leaves.
• To serve, spoon into ovenproof soup bowls and top each serving with slice of toast and 1/4 cup cheese. If desired, broil with tops 6 inches from heat 3 to 5 minutes or until cheese is bubbly and begins to brown.

SLOW-COOKER FRENCH ONION SOUP(COOK'S COUNTRY)

Steps:

• COOK ONIONS Arrange beef bones on paper towel-lined plate. Microwave until well browned, 8 to 10 minutes. Meanwhile, set slow cooker to high. Add butter, cover, and cook until melted. Add onions, 2 teaspoons salt, 1 teaspoon pepper, brown sugar, and thyme. Stir flour, apple butter, sherry, and soy sauce together in small bowl until smooth. Pour over onions and toss to coat. Tuck bones under onions around edge of slow cooker. Cover and cook on high heat until onions are softened and deep golden brown, 10 to 12 hours. (Cooked onions can be refrigerated in airtight container for 1 day.).
• 2. FINISH SOUP Remove bones from slow cooker. Heat chicken and beef broth in microwave until beginning to boil. Stir into slow cooker. Season with salt and pepper.
• 3. MAKE CROUTONS Adjust oven rack to upper-middle position (about 6 inches from broiler element) and heat oven to 400 degrees. Arrange bread slices in single layer on baking sheet and bake until bread is golden at edges, about 10 minutes. Heat broiler. Divide cheese evenly among croutons and broil until melted and bubbly, 3 to 5 minutes.
• 4. SERVE SOUP Ladle soup into bowls and top each with 2 croutons. Serve.
• **Most soup recipes start by chopping or mincing onions. For this recipe, we wanted slices that would retain their shape through 10 to 12 hours of gentle simmering. We found that cutting onions with the grain (rather than across it) yielded slices durable enough for the slow cooker.

SLOW COOKER FRENCH ONION SOUP

Steps:

• In a large skillet on medium-high heat, melt butter. Add in onions and cook until see-through, stirring frequently (It takes about 10 minutes).
• Add in sugar, and reduce heat to medium. Stir the onions constantly, caramelizing them. It will take about 20-30 minutes.
• Add in the minced garlic and apple cider, and stir until warmed through.
• Transfer the onions to the slow cooker and add in beef broth and thyme. Cook on low for 6-8 hours.
• Before serving, place the french bread slices on a baking sheet and broil in the oven for 1-2 minutes (just until browned).
• In a small bowl, mix together the three cheeses.
• Pour soup in oven-safe bowls (the soup will serve 6-8), place a piece of french bread in each bowl, and then top each with a portion of cheese. Place each bowl on the cookie sheet, and broil for 2 more minutes, until the cheese starts to melt and brown.
• Serve hot.

SLOW COOKER JAPANESE ONION SOUP RECIPE - (4.2/5)

Steps:

• Place everything but the mushrooms and green onions into a slow cooker. I added in the bottom halves of the chopped green onions at this time as well and reserved the green upper halves for garnishing. Cover and cook on high for 2-4 hours or low for 4-5 hours. An hour before serving remove the cooked veggies from the crock pot with a slotted spoon Place the sliced mushrooms into the crock pot with the broth. Give it all a good stir. Cover to cook for another hour or until the mushrooms are tender. Divide amongst the bowls and serve!

SLOW COOKER FRENCH ONION SOUP RECIPE - (4/5)

Steps:

• 1. Place butter, thyme, and bay leaf in the bottom of a 6 qt. slow cooker. Add onions; sprinkle with sugar. Cover and cook on HIGH for 8 hours. 2. Remove thyme sprig and bay leaf; discard. Add stock, vinegar, salt (adjust salt if using salted butter and/or stock), and pepper. Cook covered, on HIGH for 30 minutes. 3. Preheat broiler. 4. Arrange bread in a single layer on a baking sheet. Broil 30 seconds on each side or until toasted. Place 1 c. Soup in each of 12 (8 oz.) ramekins or ovenproof bowls. Top each serving with 2 slices of bread and about 2 T. Shredded cheese. Place filled bowls on a jelly roll pan. Broil 2 minutes or until cheese melts and begins to brown. NOTE: I often halve this recipe and it works nicely!