Sweet Potato Mallow
["1 lb. sweet potatoes (3 to 4 medium)", "1/2 c. yogurt (low-fat or regular)", "1 Tbsp. cornstarch, mix in yogurt", "1/4 tsp. salt", "1/4 tsp. mace", "3/4 c. miniature marshmallows"]
["Cook sweet potatoes.", "Heat oven to 350\u00b0. In a small mixer bowl, combine sweet potatoes, yogurt, cornstarch, salt and mace. Beat on medium speed until smooth.", "Pour sweet mixture into a lightly greased 1-quart casserole.", "Top with marshmallows.", "Bake 30 minutes."]
["sweet potatoes", "yogurt", "cornstarch", "salt", "mace", "marshmallows"]