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French Onion Soup 2

Slow Cooker French Onion Soup

This fantastic French onion soup makes a hearty meal. Start the soup in the morning and come home to a no-fuss dinner.



  • Reynolds™ Slow Cooker Liners


  • 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


  1. 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.
  2. In lined slow cooker, mix onions and margarine.
  3. Cover and cook on high heat setting 30 to 35 minutes or until onions begin to slightly brown around edges.
  4. Mix flour, Worcestershire sauce, sugar and pepper. Stir flour mixture and broth into onions.
  5. 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.
  6. Prepare Cheesy Broiled French Bread. Place 1 slice bread on top of each bowl of soup.
  7. Serve immediately.

Prep Time 15 min | Total Time 9 hr 50 min | Servings 8

Expert Tips

Serve food directly from the lined slow cooker. Once your slow cooker cools, remove the liner and throw away for easy clean up.

Here's some "broth math" to help you if don't have any ready-to-serve beef broth on hand. You can use three 10 1/2-ounce cans of condensed beef broth with 2 1/2 soup cans of water or 7 cups of your homemade beef broth. Or add 7 cups of water with 7 beef bouillon cubes or 2 heaping tablespoons of beef bouillon granules.

Vegetarians in your family? Use 4 cans of ready-to-serve vegetable broth instead of the beef broth. The color will not be a rich, deep brown, though, so Golden French Onion Soup may be a more appropriate name!

Nutrition Information: Serving Size: 1 Serving Calories 185 (Calories from Fat 70), Total Fat 8g (Saturated Fat 3g), Cholesterol 5mg Sodium 1240mg Total Carbohydrate 21g (Dietary Fiber2g), Protein 9g

% Daily Value*: Iron 8%

Exchanges:1 Starch; 2 Vegetable; 1 Fat

Percent Daily Values are based on a 2,000 calorie diet.

Reynolds® is a trademark of Reynolds Consumer Products Inc.

Recipe and photo credit: Betty Crocker

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