- 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.
- Add beef stock, rice vinegar, soy sauce, thyme, bay leaf and cracked pepper. Cover and cook for 2-4 hours longer.
- 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.
- Remove thyme and bay leaf from soup. Ladle soup into bowls and place toasted bread on top. Enjoy hot.
Slow Cooker French Onion Soup
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
kikkoman products used:
ingredients
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
directions
THE STORY OF SOY SAUCE
Even people who love soy sauce and use it all the time are often surprised to learn what it is and how it’s made. We make ours from just four simple ingredients—water, soybeans, wheat, and salt. Those ingredients are transformed through a traditional brewing process—much like making wine or beer—that has remained unchanged for centuries.
READ THE STORY OF SOY SAUCE
