Candied Sweet Potatoes

Preheat oven to 400 degrees

6 large sweet potatoes boiled to almost done, peeled, and cut into thick slices
1 cup brown sugar
1/2 cup margarine or butter
1 cup crushed pineapple
mini stay puffed marshmallows [optional]

Layer sweet potato slices into casserole dish
Melt butter and mix with brown sugar
Pour butter and brown sugar mixture over sweet potatoes
Layer crushed pineapple on top of sweetpotatoes
Add a layer of marshmallows on top [more or less to taste]

Bake in oven for 40 minutes