Spiced Sweet Potato Doughnuts

Directions

1. In a large bowl, beat butter and sugar until blended. Beat in eggs, sweet potatoes, buttermilk and vanilla. In another bowl, whisk flour, pie spice and salt; gradually beat into creamed mixture.
2. Turn onto a well-floured surface; pat to 1/2-in. thickness. Cut with a floured 3-in. doughnut cutter. In an electric skillet or deep fryer, heat oil to 375°. Fry doughnuts, a few at a time, 2-3 minutes on each side or until golden brown. Drain on paper towels. In a small bowl, mix sugar and cinnamon; dip warm doughnuts in topping mixture to coat both sides.