This recipe is a rich and delicious addition to your holiday meals.
Preheat oven to 350 degrees F.
Peel and quarter the sweet potatoes. Boil them until soft.
Add the butter and mash together. Mix in brown sugar and cinnamon.
Put mixture in a casserole dish and cover with mini marshmallows. Bake for 30 minutes or until marshmallows are browned.