Wrap sweet potato in a paper towel. Microwave on high until soft, 4 minutes. Scoop flesh into a bowl and mash; set aside. Heat oven to 400°. Place biscuit mix and butter in a bowl; rub butter into mix with fingertips until large pea-sized crumbs form. Add sweet potato, buttermilk and allspice; mix until just combined. Transfer dough onto a cookie sheet and form into a 12″ x 4″ rectangle. Cut into 8 rectangles with a serrated knife and separate slightly. Bake until biscuits are firm to the touch, 8 to 10 minutes. Transfer to a wire rack to cool. Once cool, store in an airtight container for up to 3 days.
124 calories per biscuit, 5 g fat (3 g saturated), 15 g carbs, 2 g fiber, 3 g protein
Reference: self.com/November 2010