Slow Cooker Herb-Infused French Onion Soup
Warm up with this comforting Slow Cooker French Onion Soup infused with fresh herbs and topped with gooey Gruyere cheese. This easy recipe delivers rich, savory flavors with minimal effort perfect for cozy nights!
Ingredients
4 large onions, thinly sliced
1/4 cup unsalted butter
1 tablespoon sugar
1 teaspoon salt
1 sprig fresh rosemary
6 cups beef broth
3 sprigs fresh thyme
1/2 teaspoon freshly ground black pepper
Sliced French bread or croutons
1 1/2 cups Gruyere cheese, sliced
Instructions
1. Caramelize the Onions:
Place sliced onions, butter, sugar, salt, and rosemary sprig in the bottom of a 6-quart slow cooker.
Cover and cook on HIGH for 7 hours until the onions are soft and golden brown.
2. Add Broth and Herbs:
Add beef broth, thyme sprigs, and black pepper to the slow cooker.
Cover and cook on HIGH for another hour to blend the flavors.
3. Prepare the Topping:
Preheat the broiler.
Ladle the soup into ovenproof mugs.
Top each mug with a slice of French bread or croutons.
Add slices of Gruyere cheese on top.
4. Melt the Cheese:
Place mugs under the broiler until the cheese is bubbly and golden, about 2–3 minutes.
5. Serve and Enjoy:
Serve hot and savor the rich, savory goodness of this classic French Onion Soup!
Perfect for cold nights or dinner parties!
Try this slow cooker comfort food for an easy, delicious meal!
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