SWEET ONION POTATOES AU GRATIN

SWEET ONION POTATOES AU GRATIN image

Yield 4

Number Of Ingredients 9

2 tablespoons butter
1 large or 2 medium sweet onions, such as Vidalia, thinly sliced
Salt and pepper
1/2 teaspoon ground thyme or dried if ground isn't available
1 bay leaf, fresh or dried
2 pounds baby Yukon Gold potatoes or fingerling potatoes
1/2 to 2/3 cup cream
1/2 cup grated Parmigiano-Reggiano cheese
1/2 pound grated Gruyere or other Swiss cheese

Steps:

1. Heat butter in skillet over medium heat 2. Add onions. Season with salt, pepper, thyme and bay leaf. Cook until very soft, sweet and lightly caramelized, about 20 minutes. 3. Remove bay leaf. 4. While onions cook, place potatoes in pot and cover with water. Bring to a boil, salt the water, and cook until tender, 12-15 minutes. Drain and return potatoes to pot. 5. Mash the potatoes with cream, season with salt and pepper, and mix in the Parmigiano cheese. 6. Preheat broiler. Arrange the potatoes in individual gratin dishes or a shallow casserole dish. Top with onions and Gruyere cheese. 7. Brown gratin under hot broiler until bubbly, about 2 minutes.