Onion Parmesan Gratin

Slice the onions in half lenghwise, then cut crosswise into thin slices.

In a large skillet melt butter, then add in onions, thyme, cloves, pepper and salt; cover with lid and saute until the onions are very soft (about 10-12 minutes) adjust the salt to taste (do not add in too much salt as the Parmesan is salty!).

Transfer the onions to a buttered gratin dish or small casserole dish and smooth it out with a spoon.

At this point you can cover and let sit at room temperature to broil later.

Preheat the broiler.

In a small bowl whisk together egg yolks and whipping cream, the stir in Parmesan cheese.

Pour the mixture over the onions in the baking dish.

Place under the broiler (about 2-inches from heat).

Broil until the top is golden.

Serve immediately.