Air-Fryer French Chicken Gaston Gérard Mustard Gratin

AF-200 Crew Recipe

Air-Fryer French Chicken Gaston Gérard Mustard Gratin

Easy air-fryer french chicken gaston gérard mustard gratin with measured UK ingredients, practical timings and proper global chicken flavour.

Gaston Gérard chicken comes from Burgundy and proves that mustard, cream and cheese are perfectly capable of behaving like a complete food group. The sauce is rich, sharp and crowned with a bubbling Gruyère crust.

The air fryer browns the chicken first, then turns the top of the gratin properly golden in minutes. It is French comfort food without the ceremony: one heatproof dish, one serious sauce and absolutely no apology.

Air-Fryer French Chicken Gaston Gérard Mustard Gratin
Air-Fryer French Chicken Gaston Gérard Mustard Gratin preparation stage

You’ll Need

For the Chicken
650g boneless chicken thigh fillets
1 tbsp olive oil
1 tsp sweet paprika
½ tsp garlic powder
½ tsp sea salt
½ tsp black pepper

For the Mustard Gratin
150ml creme fraiche
80ml chicken stock
2 tbsp Dijon mustard
1 tsp wholegrain mustard
1 tsp Worcestershire sauce
90g Gruyère, grated
25g panko breadcrumbs

To Serve
Chopped chives
Green beans

Optional but Dangerous
Extra Gruyère
Buttery mash
A cold French lager

Method

Preheat your air fryer to 195°C.

Toss the chicken with the olive oil, paprika, garlic powder, salt and black pepper.

Air fry in a single layer for 10 minutes, turning halfway, until browned.

Whisk the creme fraiche, stock, Dijon, wholegrain mustard and Worcestershire sauce in a heatproof dish.

Add the chicken and turn every piece through the sauce.

Air fry at 185°C for 7 minutes until the sauce is hot and beginning to thicken.

Mix the Gruyère with the panko and scatter it evenly over the top.

Return to the air fryer at 200°C for 4-5 minutes until bubbling and deeply golden.

Check the thickest piece of chicken reaches 75°C.

Rest for 3 minutes and finish with chopped chives.

Lad Tip: Keep the cheese for the end. Gruyère can go from bronze to bitter quickly in an air fryer, so watch the final minute like it owes you money.

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