French Onion Soup

Slow Cooker Recipe

Cooking Times

Ready in: 8+ hours
Prep time: 15 minutes
Cook time: 8 - 10 hours
Serves: 4 - 6


  • 6 large Cal-Organic Yellow Onions
  • 3 tbsp. extra-virgin olive oil
  • 14 oz. chicken stock
  • 10 oz. beef stock
  • 2 tbsp. Marsala wine
  • 6 slices French bread
  • 8 oz. Gruyѐre cheese, sliced


  1. Peel and thinly slice onions by hand or in a food processor. Put in slow cooker and toss with olive oil.
  2. Cover and cook on low for 8 to 10 hours, stir, when possible, until onions are caramelized.
  3. Add stock and wine. Cover and cook on high until hot, about 20 minutes.
  4. While soup is cooking, preheat oven to 400°F. Brush bread slices with olive oil and place on baking sheet. Bake until golden, about 10 minutes. Set aside.
  5. Ladle soup into ovenproof bowls, placed on a baking sheet. Top each bowl with a toasted bread slice and a slice of cheese.
  6. Place soup bowls about 4-inches below broiler in over. Broil until cheese is melted, about 2 minutes. Serve hot.

Recipe and image from our e-book Hearty Slow Cooker Recipes

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Back To Our Roots

12 sweet, savory, and fresh recipes using our favorite Cal-Organic root vegetables.