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Slow Cooker French Onion Soup

Slow Cooker French Onion Soup | Warming, comforting, and full of flavor. Who wouldn't love this easy soup from scratch? This recipe features umami-rich beef broth, melted cheese, and succulent rings of onion for a homemade soup you'll want to make on the regular. The best part? It only takes 8 ingredients, minimal prep time, and the slow cooker does the rest of the work! Plan ahead and fill your freezer with some cozy soup for later. Just add shredded cheese and bread to complete the dish.

Ingredients

Yield: Serves 6-8
Prep Time: 10 minutes
Cook Time: 6 hours, 5 minutes to 12 hours, 5 minutes
Total Time: 6 hours, 15 minutes to 12 hours, 15 minutes

6 medium sweet white onions, sliced to ¼ inch thickness
4 tablespoons unsalted butter
6 cups low-sodium beef stock
¼ cup Kikkoman® Rice Vinegar
3-4 tablespoons Kikkoman® Soy Sauce
2 sprigs thyme
1 dried bay leaf
¼ teaspoon cracked black pepper

For Serving
1 French bread baguette, sliced into ½ inch slices
1 ½ cups shredded gruyere cheese

Instructions

  1. Add slices of onion to the slow cooker and top with butter. Cover and cook on low for 8 hours or overnight or on high for 4 hours. Stir onions once for even cooking.
  2. Add beef stock, rice vinegar, soy sauce, thyme, bay leaf and cracked pepper. Cover and cook for 2-4 hours longer.
  3. Heat oven to broil. Place slices of bread onto a baking sheet and sprinkle with cheese. Broil for 3-5 minutes, until bread is toasted and cheese is melted.
  4. Remove thyme and bay leaf from soup. Ladle soup into bowls and place toasted bread on top. Enjoy hot.

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