
Créé avec l’IA
Preheat your oven to 200°C (390°F).
Dice the cooked chicken breast into bite-sized pieces and set aside.
Finely chop the onion.
In a large skillet, heat the olive oil and butter over medium heat. Add the chopped onion and sauté until translucent, about 5 minutes.
Sprinkle the flour over the onions and stir well, cooking for 1-2 minutes to form a roux.
Gradually pour in the whole milk, whisking constantly to avoid lumps. Cook until the sauce thickens, about 3-4 minutes.
Add the nutmeg, salt, and pepper to the sauce. Stir in half of the Gruyère cheese until melted and smooth.
Add the cooked chicken and rice to the sauce, mixing well to combine everything evenly.
Transfer the mixture to a greased baking dish and spread it out evenly.
Sprinkle the remaining Gruyère cheese over the top.
Bake in the preheated oven for 20-25 minutes, or until the top is golden and bubbling.
Remove from the oven and let it rest for a few minutes before serving. Enjoy your Chicken Rice Gratin!