Bold And Hearty French Onion Soup

Bold And Hearty French Onion Soup

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This French onion soup was made for the slow cooker! Enjoy a rich and savory onion flavor topped with fresh Gruyere cheese.

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Time needed

10 min preparation + 14 hour cooking

Serving Size / Yield

6 servings

Ingredients

  • 4 yellow onions, sliced
  • 2 T. butter, melted
  • 2 T. olive oil
  • Salt and pepper to taste
  • 2 T. balsamic vinegar
  • 8-10 C. beef broth
  • 1-2 C. Gruyere cheese, grated

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Directions

In your crockpot, combine onions, butter, olive oil, salt, and pepper. Cook on low for 8 hours until onions are golden brown. Add in balsamic vinegar and broth; cover and continue cooking on low for an additional 6 hours. Ladle soup into bowls, top with Gruyere cheese, and broil in the oven until top is golden.

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