Apple Sweet Potato Bake

Source: http://www.tasteofhome.com/recipes/Apple-Sweet-Potato-Bake

3 C Sliced Peeled Cooked Sweet Potatoes
3 C Sliced Peeled Apples (About 2 Large)
3/4 C Brown Sugar
3/4 t Nutmeg
1/4 t Allspice
1/4 t Salt
Dash of Pepper
3 T Butter
Marshamallows, Optional

Preheat oven to 350F. In a greased 1-1/2 quart baking dish, layer half of the sweet potatoes and apples. Combine brown sugar, nutmeg, allspice, salt, and pepper. Sprinkle half over apples. Dot with half of the butter. Repeat layers. Cover and bake for 15 minutes. Baste with pan juices. Sprinlke with marshamallows and uncover for 15 minutes longer or until apples are tender.