get 3 big big ones or 5 regular.........youre looking to end up w/ around 5 cups of sweet potatoes once theyre baked and peeled. into the cooked potatoes you put 1 cup sugar, 1/2 cup silken tofu, 1/4 cup soy creamer, 2 tablespoons margarine, 1 tsp vanilla, 1/2 tsp salt and beat it w/ a mixer. the topping is oatmeal, flour (about 1/2 cup of each maybe), 1/2 cup brown sugar, pumpkin pie spice and enough margarine to hold it together.............then you put chopped marshmallows on top and bake it for about 40min