Carrot gratin

Ingredients: For 4 persons - 1 kg of carrots - 2 shallots - 1 egg yolk - 6 sprigs of chervil - 4 tablespoons of heavy cream - 10 g butter - Parsley - Chives - Salt and pepper Peel and slice the carrots. Peel and chop the shallots. Steam the carrots for 15 minutes. In a bowl, mix the cream, egg, shallots, chervil, parsley, chives, salt and pepper. Then gently add the steamed carrots so that the slices remain whole. Preheat the oven to th. 6 (180°). Butter a gratin dish and pour the mixture into it. Put the dish in the oven for 20 minutes. Serve the gratin hot.