Slow Cooker French Onion Soup

Name: Slow Cooker French Onion Soup
Total time: 315
Yield: 8
Ingredients: 6 tablespoons butter; 4 large yellow onions, sliced and separated into rings; 1 tablespoon white sugar; 2 cloves garlic, minced; 0.5 cup cooking sherry; 7 cups reduced-sodium beef broth; 1 teaspoon sea salt, or to taste; 0.25 teaspoon dried thyme; 1 bay leaf; 8 slices of French bread; 0.5 cup shredded Gruyere cheese; 0.33333334326744 cup shredded Emmental cheese; 0.25 cup freshly shredded Parmesan cheese; 2 tablespoons shredded mozzarella cheese

Recipe by Chandrav from allrecipes.com

Dinner 5 Hr. 15 Mins.

Ingredients

8 servings

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6 tablespoons butter
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4 large yellow onions, sliced and separated into rings
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1 tablespoon white sugar
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2 cloves garlic, minced
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0.5 cup cooking sherry
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7 cups reduced-sodium beef broth
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1 teaspoon sea salt, or to taste

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0.25 teaspoon dried thyme
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1 bay leaf
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8 slices of French bread
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0.5 cup shredded Gruyere cheese
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0.33333334326744 cup shredded Emmental cheese
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0.25 cup freshly shredded Parmesan cheese
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2 tablespoons shredded mozzarella cheese

Instructions

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