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Slow Cooker White Bean French Onion Soup

Course Soup
Cuisine Italian
Keyword slow cooker, vegetarian, white beans
Cook Time 6 hours


  • 2 large white onions diced
  • ½ teaspoon sea salt
  • ¼ cup melted butter
  • 2 14 oz. cans organic white beans
  • 1 teaspoon dried oregano
  • ½ teaspoon freshly cracked black pepper
  • 2 teaspoons fresh thyme leaves
  • 4 cups vegetable stock
  • homemade or storebought croutons for garnish*
  • shredded parmesan cheese for garnish


  1. Add the diced onions, salt, and melted butter to your slow cooker on high.
  2. Stir to combine and let the onions caramelize for 3 to 5 hours.
  3. Add the beans, oregano, pepper, thyme, and vegetable stock and continue to cook for another 3 hours on high.
  4. Garnish with homemade croutons and shredded Parmesan cheese.

Recipe Notes

*If you have time, I highly recommend making your own croutons. They are SO much better than store-bought! Below is the recipe I use to make mine.