Sweet Potato and Apple Casserole

6 large sweet potatoes, peeled, sliced, and boiled until just tender
6 tart apples, peeled and sliced
8 tablespoons of butter, cubed
1/2 cup of brown sugar

Preheat the oven to 350 degrees F.

Grease a casserole with butter.

Layer half of the potatoes into the dish and dot with a third of the butter and sprinkle with a third of the brown sugar.

Layer in all of apples and dot with a third of the butter and sprinkle with a third of the brown sugar.

Layer with the remaining potatoes and dot with the remaining butter and sprinkle with the remaining sugar.

Bake in a 350 degree oven for 30 to 45 minutes, until the potatoes are browned and tender.