Valentine’s Date Night: Just 5 ingredients. I make this when I want a restaurant-quality meal without standing over the stove all evening.

This 5-Ingredient Slow Cooker French Onion Chicken captures the soul of a classic French onion soup and transforms it into a protein-packed main course. By slow-braising the onions in beef broth and butter, they caramelize and soften into a rich jam that flavors the chicken from the bottom up. The finishing touch—a thick blanket of melted Swiss cheese—provides that signature gooey topping that makes this dish feel like a cozy bistro meal with minimal effort.

Slow Cooker French Onion Chicken

Ingredients:

Directions:

Step 1: Prep the Onions: Peel and thinly slice the yellow onions.

Tip: Slice them from root to tip (vertically) rather than into rings. Vertical slices hold their shape better during a long slow-cook, giving the sauce a more luxurious texture.

Step 2: Layer the Base: Place the onions in the bottom of the slow cooker and dot the top with the butter. Lay the patted-dry chicken breasts in a single layer directly over the onions.

Step 3: Add the Broth: Pour the beef broth into the slow cooker. Ensure the liquid reaches the bottom so the onions can braise properly. The chicken should be nestled into the onions and mostly submerged.

Step 4: Slow Cook: Cover and cook on LOW for 4/5 hours, or on HIGH for 2 1/2 to 3 hours. The chicken is ready when it reaches 165°F and pulls apart easily.

Step 5: The Cheesy Topping: Once the chicken is tender, taste the broth and add a pinch of salt or pepper if needed. Lay the Swiss cheese slices over the top in an overlapping layer.

Step 6: Melt and Blister: Cover and cook on HIGH for 10/15 minutes until the cheese is bubbling and gooey.

Note: If your slow cooker insert is oven-safe, you can pop it under a broiler for 2/3 minutes for those classic golden-brown spots!