Slow Cooker French Onion Soup
 
Prep time
Cook time
Total time
 
The slow cooker cooks the caramelized onions to the perfect silky texture for you while you’re at work and then it just takes a mostly hands off 35 minutes to finish it off when you get home. It’s easy to double to a 6-quart slow cooker to feed a family.
Author:
Recipe type: soup
Serves: 3 - 16 oz servings
Ingredients
  • 2 T butter
  • 3 springs thyme
  • 1 bay leaf
  • 3 large sweet onions, vertically sliced
  • ½ T sugar
  • 3+ cups beef stock
  • 1 T red wine vinegar
  • Pinch kosher salt
  • ½ t black pepper, fresh grated
  • 9 slices, baguette
  • ¾ c Gruyere cheese, shredded
Instructions
  1. Place butter, thyme, and bay leaf in the bottom of a 3-1/2 quart slow cooker.
  2. Add onions and sprinkle with sugar.
  3. Cover and cook on high for 8 hours.
  4. Preheat broiler and line a baking sheet with foil.
  5. Remove thyme and bay leaf.
  6. Pour in stock, vinegar, salt and pepper. Cover and cook on high for 30 minutes more. Taste and adjust as needed.
  7. While soup is cooking, place sliced baguette on prepared pan and broil 30 seconds on each side until toasted.
  8. Place French onion soup bowls on same baking sheet used for the bread. Fill with French onion soup almost to the top. Place 3 slices of bread into each bowl and press to allow them to absorb the broth. Top each bowl with a quarter cup of shredded cheese.
  9. Broil for about 2 minutes until the cheese melts and starts to brown.
Recipe by Gravel & Dine at https://gravelanddine.com/slow-cooker-french-onion-soup/