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Slow-Cooker French Onion Soup

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By Betty Crocker Kitchens
Updated Dec 22, 2020
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Our easy Slow-Cooker French Onion Soup is a fantastic winter meal made with little cleanup. How do you make Slow-Cooker French Onion Soup? Start by lining your slow-cooker and cooking the onions. Then add the flour, Worcestershire sauce, sugar, pepper and broth. Cover and cook for a no-fuss soup that's rich in flavor. Follow the directions to prepare Cheesy Broiled French Bread to get every last spoonful. If you've got 15 minutes to prep, this French onion soup recipe in the slow cooker will turn your table into the place to be by the end of the day.

Slow-Cooker French Onion Soup

  • Prep Time 15 min
  • Total 9 hr 50 min
  • Servings 8
  • Ingredients 11
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Ingredients

  • Reynolds™ Slow Cooker Liners

Soup

  • 3 cups sliced onions (3 medium)
  • 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
Make With
Progresso Broth

Instructions

  • Step 
    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.
  • 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.

Nutrition

185 Calories
8g Total Fat
9g Protein
21g Total Carbohydrate

Nutrition Facts

Serving Size: 1 Serving
Calories
185
Calories from Fat
70
Total Fat
8g
Saturated Fat
3g
Cholesterol
5mg
Sodium
1240mg
Total Carbohydrate
21g
Dietary Fiber
2g
Protein
9g
% Daily Value*:
Iron
8%
8%
Exchanges:
1 Starch; 2 Vegetable; 1 Fat;
*Percent Daily Values are based on a 2,000 calorie diet.

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