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French Onion Soup


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Rate this recipe 3.9/5 (15 Votes)


  • Soup:
  • 3 large onions
  • sliced (3 cups)
  • 3 tablespoons margarine or butter
  • melted
  • 3 tablespoons all-purpose flour
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon sugar
  • 1/4 teaspoon pepper
  • 4 cans (14 1/2 ounces each) ready-to-serve beef broth
  • Cheesy Broiled French Bread:
  • 8 slices French bread
  • 1 inch thick
  • 3/4 cup shredded mozzarella cheese (3 ounces)
  • 2 tablespoons grated or shredded Parmesan cheese


Level of difficulty Easy
Cost Average budget


Step 1

Place 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.

Step 2

In lined slow cooker, mix onions and margarine.

Step 3

Cover and cook on high heat setting 30 to 35 minutes or until onions begin to slightly brown around edges.

Step 4

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.

Step 5

Prepare Cheesy Broiled French Bread. Place 1 slice bread on top of each bowl of soup. Serve immediately.

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French Onion Soup French onion soup