3 lbs of sweet potatoes, peeled and sliced thin
1 medium onion sliced thin
1 large clove of garlic, minced
1 cup of half & half
1/2 cup of freshly grated Gruyere
1/2 cup of freshly grated Parmesan
1 tablespoon of fresh sage, minced
1/4 teaspoon freshly grated nutmeg
salt and pepper to taste
Preheat the oven to 375 degrees
In a small sauce pan place half & half , garlic and warm until almost scalding.
Butter a 2 quart baking dish, place the first layer of sweet potatoes in an over lapping concentric circles on the bottom, interjecting an onion slice every third potato.
Sprinkle the layer with sage, nutmeg, salt and pepper. Followed by the two cheeses.
Repeat until finished.
Pour half & half over the top then top off with the remaining cheeses.
Cover dish with foil and bake for 45 minutes, then remove foil and bake for an additional 15 minutes.
Let stand for about 15 minutes before serving for cheeses to set.