Crockpot French Onion Soup

Crockpot French Onion Soup


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Create a crockpot French onion soup with delicious cheesy bread on top! Broil the bread with mozzarella and Parmesan for extra cheese flavor.

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Time needed

10 min preparation + 8.5 hour cooking

Serving Size / Yield

8 servings


  • 2 large onions, sliced
  • 3 Tbsp. butter, melted
  • 3 Tbsp. flour
  • 1 Tbsp. Worcestershire sauce
  • 1 tsp. sugar
  • 1/2 tsp. pepper
  • 4 cans beef broth
  • 8 slices French bread
  • 1 C. shredded mozzarella cheese
  • 2 Tbsp. grated Parmesan cheese

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Mix the onions and butter in a slow cooker. Cover and cook on high for 30 minutes until the onions brown a bit. Mix the flour, Worcestershire, sugar, and pepper. Stir this mixture into the onions and cover again. Cook on low for 8 hours until the onions are tender. Toast the bread with cheese on top and place into each bowl of soup before serving.

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