Onion Gratin

A slow roasted sweet onion gratin with a cheesy cream sauce.

👥 4 Servings⏱️ Prep & Cook: 1h⏳ Prep: 10 min🔥 Cook: 50 min👤 kevin📖 closetcooking

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🥘 Ingredients

Check off ingredients as you prepare them:

Spread the onion slices out in a baking dish and drizzle them with olive oil.

olive oil

Season with salt and pepper and sprinkle with the thyme.

thyme, chopped1 teaspoon

Bake in a preheated 375F/190C oven for ⏱️ 15 minutes.

Meanwhile heat the heavy cream and wine in a sauce pan until it starts to bubble on the edges.

heavy cream1 cup

Spoon the cream over the onions.

Cover in foil and bake for another ⏱️ 25 minutes.

Remove the foil and sprinkle the cheese on top.

Increase the temperature to 450F/230C and bake until golden brown, about ⏱️ 5 minutes.