Keto French Onion Chicken Skillet
A one-pan comfort meal that’s low-carb and full of flavor.
KEY INFO
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Servings: 4-6
- Difficulty: Easy
- Diet: Keto, Low-carb, Gluten-free
EQUIPMENT NEEDED
- Large oven-safe skillet (12-inch recommended)
- Sharp knife
- Cutting board
- Alternative: Regular skillet + baking dish if you don’t have an oven-safe pan
INGREDIENTS
For the Chicken:
- 1.5 lbs (680g) chicken breast, sliced into cutlets
- 2 large onions, thinly sliced (about 3 cups)
- 3 cloves garlic, minced
- 2 tbsp (30g) butter
- 1 cup (240ml) chicken broth
- 1/2 cup (120ml) red wine (optional, replace with extra broth if preferred)
- 1 cup (100g) Gruyère cheese, shredded
- 1 tsp dried thyme
- Salt and pepper to taste

METHOD
1. Prepare Onions
Heat butter in skillet over medium heat.
Add sliced onions.
Cook for 25-30 minutes until golden brown, stirring occasionally.

2. Season Chicken
While onions cook, slice chicken into even cutlets.
Season with salt, pepper, and half the thyme.
3. Cook Chicken
Remove caramelized onions from pan.
Increase heat to medium-high.
Cook chicken 4-5 minutes per side until internal temperature reaches 165°F.

4. Combine Components
Return onions to pan.
Add garlic, cook 1 minute.
Pour in wine/broth.
Simmer 5 minutes until liquid reduces by half.

5. Finish
Top with cheese.
Broil 2-3 minutes until cheese is golden and bubbly.

CRUCIAL TIPS
- Don’t rush the onions – slow cooking creates the best caramelization.
- Keep chicken pieces even thickness for uniform cooking.
- Let finished dish rest 5 minutes before serving.
STORAGE & VARIATIONS
Storage:
Refrigerate up to 4 days.
Reheating:
Best in oven at 350°F for 10-15 minutes.
Common Substitutions:
- Chicken thighs work great.
- Swiss or provolone can replace Gruyère.
- Beef broth adds richer flavor.
Scaling:
- Recipe doubles easily.
- Use larger pan or cook in batches.
Variations:
- Add mushrooms with onions.
- Stir in heavy cream before adding cheese.
- Top with crispy bacon bits.