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Slow Cooker French Onion Soup

Rich, savory French onion soup made effortlessly in your slow cooker. A classic dish perfect for cozy nights.
Prep Time15 minutes
Cook Time4 hours
Total Time4 hours 15 minutes
Category: Soups & Stews
Kitchen: French
Keyword: Air Fry Chocolate Chip Cookies, chicken stirfry easy recipe, Chocolate Chip Cookies In Air Fryer, comfort food recipes, easy easy dinner recipes, easy recipes, sweet recipes easy indian sweets recipes
Servings: 6 bowls
Author: Dorothy

Ingredients

  • 4 large yellow onions, thinly sliced
  • 3 tablespoons butter
  • 2 tablespoons olive oil
  • 1 teaspoon sugar
  • 1 teaspoon salt
  • 6 cups beef broth
  • 1/2 cup dry white wine
  • 1 teaspoon Worcestershire sauce
  • 1 bay leaf
  • 1 teaspoon thyme
  • French baguette, sliced
  • 1 cup shredded Gruyère cheese

Instructions

  1. Heat butter and olive oil in a skillet over medium heat. Add onions, sugar, and salt. Cook until caramelized, about 25 minutes.
  2. Transfer caramelized onions to a slow cooker. Add beef broth, white wine, Worcestershire sauce, bay leaf, and thyme.
  3. Cook on low for 6-8 hours or on high for 3-4 hours.
  4. Remove bay leaf before serving. Ladle soup into oven-safe bowls.
  5. Top each bowl with a slice of baguette and shredded Gruyère cheese.
  6. Place bowls under a broiler until cheese is melted and bubbly.