Double Potato Gratin

• 1 tablespoon butter, divided in two
• 3 lbs yukon gold potatoes, about 6 large
• 1 lb sweet potato, about 2 large
• 14 cup extra virgin olive oil
• 2 teaspoons salt
• 1 teaspoon pepper
• 1 tablespoon chopped fresh rosemary or 1 tablespoon thyme (or 1/2 tsp dried)

1. Preheat oven to 425F.
2. Line bottom of an 8- 10 cup baking dish with parchment paper& coat with half the butter.
3. Peel both types of potatoes, cut into 1/4 inch thick slices& arrange the half of the regular potatoes in layers in the prepared dish; sprinkle each layer with some of the olive oil& some of the seasonings.
4. Arrange all of the sweet potatoes on top; sprinkle with some of the olive oil& seasonings.
5. Continue layering the remaining regular potatoes, sprinkling each layer as before.
6. Coat another piece of parchment paper with the remaining butter& place, butter side down, on top of the potatoes.
7. Weigh this down with a heavy, oven-proof dish (or foil covered bricks) and bake for an hour or until potatoes are tender.
8. Remove weights& paper; let potatoes rest for 5 minutes before inverting onto a serving dish& removing other piece of parchment.

butter, gold potatoes, sweet potato, extra virgin olive oil, salt, pepper, rosemary

Taken from www.food.com/recipe/double-potato-gratin-84974 (may not work)