CARAMELIZED ONION BUNS

Steps:

• For dough, put yeast, sugar, salt, 3 cups flour, water, eggs and butter in mixing bowl.
• Beat on high for 3 to 5 minutes, until very smooth.
• Using a wooden spoon, stir in 3 cups flour.
• Add flour 1/2 cup at a time until dough becomes too stiff to stir.
• Turn out onto work surface and continue to add remaining flour, kneading, until dough is smooth, 7 to 10 minutes.
• (Use last 1/4 cup flour only if needed to prevent sticking.) Grease large bowl.
• Add dough, turning to coat.
• Cover and leave in warm place until doubled in bulk, about 1 1/2 hours.
• For onions, melt butter in skillet over low heat.
• Add onions, garlic, salt and pepper.
• Cover and cook, stirring often, 10 to 12 minutes or until very soft.
• Sprinkle in sugar.
• Increase heat to medium-low.
• Stir until onions are very brown but not scorched (2-3 minutes).
• Add Worcestershire, scrape up browned bits and simmer, stirring until juices evaporate.
• Cool.
• To make buns, punch down dough and knead in onions until evenly distributed.
• Divide and roll into 10 smooth round buns.
• Place on 2 baking sheets lined with parchment paper.
• Cover and let rest 30 minutes.
• For glaze, whisk egg whites with water and brush over each bun.
• Bake buns in two batches in the centre of a preheated 375°F oven for 20 to 22 minutes, until golden brown and tops start to sound hollow when tapped.