Creamy French Onion Chicken Skillet
Ingredients
Method
Step 1: Season the Chicken
Pat chicken dry.Season with salt, pepper, garlic powder, and paprika.Step 2: Sear the Chicken
Heat olive oil in a large oven-safe skillet over medium-high heat.Cook chicken for 4–5 minutes per side until golden brown.Remove and set aside.Step 3: Caramelize the Onions
Reduce heat to medium.Add butter and onions.Cook slowly for 15–20 minutes, stirring occasionally, until deep golden brown and caramelized.Add garlic and cook for 30 seconds.Step 4: Make the Sauce
Stir in Worcestershire sauce and thyme.Pour in beef broth.Bring to a simmer.Mix cornstarch and water.Add to the skillet and stir until thickened.Reduce heat and stir in heavy cream.Step 5: Return the Chicken
Nestle chicken back into the skillet.Spoon onions and sauce over the chicken.Step 6: Add Cheese
Sprinkle Gruyère and mozzarella evenly over the chicken.Step 7: Broil
Place skillet under the broiler for 2–3 minutes until cheese is melted and golden.Step 8: Serve
Garnish with fresh parsley and serve hot.
Enjoying this recipe? You may also love my Comfort Dinner Guide — a simple collection of easy, cozy meal ideas for busy weeknights. It’s a helpful extra resource for those nights when you want something comforting without overthinking dinner.
🔄 Variations
Mushroom French Onion Chicken
Add:
- 8 ounces sliced mushrooms
while caramelizing the onions.
Bacon French Onion Chicken
Add:
- 6 slices cooked chopped bacon
before adding the cheese.
Low-Carb Version
Serve over:
- Cauliflower mash
- Roasted vegetables
instead of potatoes or rice.
Extra Cheesy Version
Add:
- Additional Gruyère cheese
- Provolone cheese
for a richer finish.
🍽️ Serving Suggestions
Serve with:
- Creamy mashed potatoes
- Buttered egg noodles
- Rice pilaf
- Roasted asparagus
- Green beans
- Garlic bread
The sauce is incredible spooned over potatoes or rice.
🧊 Storage
Refrigerator
Store leftovers in an airtight container for up to 4 days.
Freezer
Freeze for up to 2 months.
Reheating
Reheat gently on the stovetop or in the microwave.
Add a splash of broth or cream if needed.
💡Pro Tips
✔ Take your time caramelizing the onions—this creates the signature French onion flavor.
✔ Use Gruyère cheese if possible for authentic French onion taste.
✔ Chicken thighs provide extra tenderness and flavor.
✔ Do not rush the sauce; let it simmer and develop flavor.
✔ Broiling the cheese creates a beautiful golden crust.
❓ FAQs
Can I use chicken thighs?
Yes. Chicken thighs work exceptionally well in this recipe.
What can I substitute for Gruyère cheese?
Swiss cheese, provolone, or mozzarella are great alternatives.
Can I make this ahead?
Yes. Prepare the skillet up to the broiling step and refrigerate. Broil just before serving.
Why are my onions not caramelizing?
Caramelization takes time. Cook them slowly over medium heat rather than high heat.
Is this recipe meal-prep friendly?
Absolutely. The flavors become even richer the next day.