Onion Gratin

Step 1

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

Step 2

Season with salt and pepper and sprinkle with the thyme.

Step 3

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

Step 4

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

Step 5

Spoon the cream over the onions.

Step 6

Cover in foil and bake for another 25 minutes.

Step 7

Remove the foil and sprinkle the cheese on top.

Step 8

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