French Onion Soup
This easy French onion soup recipe uses a slow cooker to caramelize the onions to perfection, creating a rich and flavorful broth. Topped with crusty bread and melted Gruyère cheese, it's a classic comfort food.
⚡Slow Cooker
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This easy French onion soup recipe uses a slow cooker to caramelize the onions to perfection, creating a rich and flavorful broth. Topped with crusty bread and melted Gruyère cheese, it's a classic comfort food.
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Place the sliced onions in the bottom of a slow cooker.
Top the onions with sliced butter and fresh thyme sprigs.
Season generously with salt and black pepper.
Cover and cook on low for 8-10 hours or on high for 4-5 hours, until the onions are deeply caramelized and soft.
Once caramelized, pour in the beef broth and balsamic vinegar. Stir to combine.
Cover and cook on high for another 30-60 minutes to allow the flavors to meld and the soup to heat through.
Preheat your oven's broiler. Ladle the hot soup into oven-safe bowls.
Place a slice of toasted baguette on top of the soup in each bowl.
Top generously with shredded Gruyère cheese.
Place the bowls on a baking sheet and broil for 2-3 minutes, or until the cheese is melted, bubbly, and slightly browned. Watch carefully to prevent burning.
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