French Onion Chicken
Chicken breasts browned and finished with slow-cooked onions, white wine, thyme and melted gruyere.
Build the Meal Around French Onion Chicken
- Green beans
- Crusty bread
- Mashed potato
- Green salad
How to Cook French Onion Chicken
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Heat the oven to 200°C / 390°F. Melt the butter and cook the onions over medium-low heat for 25 minutes, stirring often, until deep brown.
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Season the chicken with the salt and brown in the oil for 4 minutes per side. Set in an ovenproof dish.
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Add the wine and thyme to the onions and bubble for 2 minutes. Spoon over the chicken and top with the gruyere.
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Cook for 15 minutes until bubbling and browned.
Worth Knowing Before You Cook
Cook the onions slowly.
Brown the chicken before baking.
If your oven runs hot, check at 12 minutes.
Use a good melting cheese.
If You're Missing Something
- A dry vermouth keeps for longer than an open bottle of white wine and is the closer swap than a random white left in the fridge; for an alcohol-free version, use the same amount of stock with a squeeze of lemon.
Leftovers
Keeps in the fridge for 3 days. Reheat gently.
French Onion Chicken: Your Questions Answered
How long does French Onion Chicken take to make?
About 55 minutes in total — 15 minutes of preparation and 40 minutes of cooking. The recipe serves 4.
What are the key tips for making French Onion Chicken?
Cook the onions slowly. Brown the chicken before baking. If your oven runs hot, check at 12 minutes. Use a good melting cheese.
What should I serve with French Onion Chicken?
Green beans; Crusty bread; Mashed potato; Green salad.
How should French Onion Chicken be stored?
Keeps in the fridge for 3 days. Reheat gently.
Is French Onion Chicken suitable for a special diet?
This recipe is gluten-free, high-protein, low-carb, keto and no added sugar. Those labels are checked against the ingredient list, so a dish is only marked when nothing in it contradicts the claim.
How many calories are in French Onion Chicken?
About 540 kcal per serving, with 52 g protein, 11 g carbohydrate and 32 g fat. The figures are calculated from the ingredient list and are an estimate.
The Numbers per Serving
Per serving, calculated from the ingredient list. Treat these as an estimate — brands and cuts vary.
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One person, one kitchen — no test kitchen, no team. How every recipe on this site is checked before it goes up.