5-6 med.-lg. sweet potatoes
Milk
1 1/2 sticks butter
3 tbsp. brown sugar
2 tbsp. apple pie spice

Boil sweet potatoes, peel skins off. Then mash the potatoes with 1 stick of butter. Add milk as necessary to make smooth and creamy (should not be watery or loose). Add 2 tablespoons of apple pie spice and 2 tablespoons of brown sugar and mix well.

Take a glass pan/baking dish and smear butter all around bottom and sides. Pour mixture into pan. Sprinkle brown sugar and little pieces of butter on top. Bake 375 degrees for 15 minutes or until sugar gets brown and crusty.