Potatoes au Gratin

5-6 Yukon Gold Potatoes (about 2-2.5 lbs). very thinly sliced
¼ cup grated Parmesan cheese, grated
½ cup Gruyere (or other melt-able) cheese, grated
2 cloves garlic, finely minced
½ cup light cream

Preheat oven to 400F. Evenly divide the potatoes, cheeses and garlic in three layers in an oiled 2 quart casserole dish. Salt and pepper each layer to taste. Pour cream over potatoes, cover and bake for 30 minutes. Reduce oven to 350F. Uncover casserole and bake another 20 minutes, or until potatoes are tender when pierced with the tip of a knife.