Recipe for Slow Cooker French Onion Soup | Almanac.com

Slow Cooker French Onion Soup

Photo Credit
Becky Luigart-Stayner
Makes 4 servings.
Daphne Turner, Slippery Rock, Pennsylvania

Slow Cooker French Onion Soup

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Our Slow Cooker Fresh Onion Soup is the reason that slow cookers were invented! Well, maybe not, but it’s a no-fuss, hearty soup topped with French bread and creamy cheese. There’s a lot to love!

Find more family favorite recipes, and the stories behind them, in The Old Farmer’s Almanac Reader’s Best Recipes.

1/2 cup (1 stick) butter or margarine
3 large onions, thinly sliced
4 cups hot water
2 tablespoons instant beef bouillon or 6 beef bouillon cubes
1 teaspoon Worcestershire sauce
1/2 teaspoon salt
4 slices toasted French bread
1/2 cup freshly grated Parmesan or Gruyere cheese

Melt butter in a skillet over low heat. Add onions and cook slowly, up to 45 minutes to release maximum flavor, or until nicely browned, stirring frequently. Transfer to a slow cooker. Add water, bouillon, Worcestershire sauce, and salt. Cover and cook on low for 4 to 6 hours.

To serve, top each bowl with 1 slice of bread. Sprinkle each with 2 tablespoons Parmesan. Recipe may be doubled and kept hot in slow cooker.