1- Peel and slice the onion.
2- Cook the potatoes in pre-salted water.
3- Brown the onion with a little olive oil, add the sliced chicken escalopes, thyme, bay leaf and white wine.
4- Simmer for 15 minutes then add the crème fraîche, stir and leave for another 2 minutes.
5- Lightly oil a gratin dish and arrange the peeled potatoes cut into pieces, sprinkle with nutmeg.
6- Add the onion and chicken mixture after removing the bay leaf, sprinkle with Espelette pepper.
7- Cover with Bresse Bleu. Bake in a hot oven at 180°C (gas mark 6) for approximately 25 minutes.
Serve immediately.
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