Stir in all the ingredients except marshmallows. Ingredients: 3 large sweet potatoes 1 can crushed pineapples 1/2 teaspoon cinnamon 1/2 teaspoon nutmeg 1/2 stick butter 1/4 cup brown sugar 1/4 cup granulated sugar 1 cup marshmallows Instructions: Peel and boil sweet potatoes until soft. https://www.tasteofhome.com/recipes/favorite-mashed-sweet-potatoes For Mashed Sweet Potatoes with Candied Nuts: use my easy 5-minute caramelized nuts recipe for an easy no-fail win. Drain and mash to consistency of mashed potatoes. For Mashed Sweet Potatoes with Candied Bacon: stir one tablespoon brown sugar into chopped, cooked bacon and cook an additional two minutes; add candied bacon directly to the top of the potatoes for a sweet, tantalizing crunch.