
Crockpot French Onion Soup
Ingredients
- 3 large white onion
sliced
- 3 tablespoons butter
- 2 tablespoons brown sugar
- 64 ounces beef broth
I use reduced sodium
- 1 tablespoon Worcestershire sauce
- 1 clove garlic
minced
- ⅓ cup dry sherry
- 4 sprigs fresh thyme
or 1 teaspoon dried thyme
- 1 bay Leaf
- 8 slices dry French bread
- ¾ cup shredded Gruyere cheese
- ½ cup shredded Emmental cheese
- 6 tablespoons shredded Parmesan cheese
Directions
- 1
In a large non-stick pan, cook onions, butter, and brown sugar over medium-low heat until golden and caramelized. (About 20 minutes).
- 2
Once golden, add to the slow cooker along with the remaining ingredients except for bread and cheese.
- 3
Cook on low for 6 to 8 hours.
- 4
Remove and discard bay leaf and ladle the soup into bowls. Top with dry bread slices and cheeses. Broil 2 to 3 minutes or until cheese is melted and browned.

Crockpot French Onion Soup
Similar Recipes
Ratings & Reviews
Based on 227 ratings
Rating Breakdown
About this Recipe
Craving the deep, savory comfort of classic French Onion Soup but without the constant watch over a simmering pot? Our Crockpot French Onion Soup recipe delivers all the rich, layered flavors you love with minimal fuss, transforming simple ingredients into a gourmet experience.
This recipe works wonders by leveraging the slow cooker to achieve perfectly caramelized onions and an incredibly rich beefy broth. The prolonged, gentle heat coaxes out the natural sweetness from the onions, creating a depth of flavor that's hard to achieve quickly on the stovetop. It's a truly hands-off approach to a notoriously time-consuming dish.
What you'll discover is a bowl brimming with tender, sweet onions swimming in a complex, savory broth enhanced by a hint of dry sherry, earthy thyme, and a subtle tang from Worcestershire. Each spoonful culminates in a satisfying top layer of toasted dry French bread, generously smothered in a melty, bubbly blend of Gruyere, Emmental, and Parmesan cheeses. The aroma alone is enough to transport you to a cozy French bistro, right from your own kitchen.
Feel free to customize this Crockpot French Onion Soup to your preference. While we adore the rich blend of Gruyere, Emmental, and Parmesan, you could experiment with other good melting cheeses like provolone or Swiss. For the herbs, if fresh thyme isn't available, dried thyme works beautifully. If you prefer a milder flavor, you can adjust the amount of sherry to your liking.
This comforting soup is perfect for a chilly evening meal, a cozy weekend lunch, or even an impressive appetizer for a dinner party. Serve it straight from oven-safe crocks, ensuring each guest gets that irresistible golden, bubbling cheese topping.







