Gratin de Courgettes au Parmesan (Zucchini and Parmesan Gratin) Recipe

Heat butter in a large skillet over medium-high heat; saute onion carrots and parsley until lightly browned 3 to 4 minutes. Add zucchini and saute until zucchini is tender about 15 minutes.

Preheat oven to 300 degrees F (150 degrees C). Butter a baking dish. Heat a kettle or pot of water to boiling.

Beat eggs cream and Parmesan cheese together in a bowl; stir in zucchini mixture. Transfer mixture to the prepared baking dish.

Place a clean kitchen towel in the bottom of a roasting pan. Arrange the baking dish on top of the towel and pour boiling water halfway up the sides of the baking dish creating a water bath.

Bake in the preheated oven until bubbling and set about 45 minutes.