Ingredients:

2 pounds sweet potato, peeled and cubed
2 tablespoons orange juice
3/4 cup brown sugar
1/8 teaspoon ground nutmeg
2 tablespoons butter, cubed
1 cup miniature marshmallows

Preheat oven to 350 degrees F (175 degrees C). In a large saucepan cook sweet potatoes in salted water over medium-high heat for about 20 minutes, or until done. Drain, and add orange juice, brown sugar, nutmeg and butter. Whip until smooth. Spread into a medium size casserole dish and top with marshmallows. Bake in preheated oven for about 10 minutes, or until marshmallows are golden brown.

Source: allrecipes.com