Sugared Campfire Donuts

½ cup white sugar

¼ teaspoon ground cinnamon

1 (10 ounce) can refrigerated biscuit dough

3 tablespoons melted butter

Toss together the sugar and cinnamon in a bowl, set aside. Cut each biscuit into thirds, and roll into balls. Skewer on a toasting fork, and cook over hot coals, turning constantly, until golden brown. Dip into melted butter, then roll in cinnamon sugar.