Have you guys checked out Pinterest? If not you definitely should. I've found tons of new recipes including this one from there.
here's the recipe:
3 Tbsp melted butter
3 Tbsp olive oil
4 lbs potatoes
1/2-1 tsp red pepper flakes (optional)
8 sprigs thyme
Preheat oven to 375. In a bowl combine the butter and olive oil. Brush all over your dish your using. SLice potatoes very thinly and evenly. (I used my Kitchen-aid food processor it has a slicing attachment that makes it so much easier). Arrange the sliced potatoes vertically in the dish. Wedge shallots and onions between the poatoes. (I also added some fresh bacon chopped up YUMMY). Salt and pepper to taste. Bake 1 1/4 hr. Add thyme and bake 30-40 more min or until potatoes are cooked through with a crispy top.