In 2-quart saucepan, heat oil over medium heat to 350°F to 375°F.
In large bowl, beat powdered sugar, pumpkin pie spice, pumpkin and just enough half-and-half with whisk until smooth and thick glaze forms. Set aside.
Separate dough into 8 biscuits. Using small round lid or cookie cutter, cut hole in center of each biscuit.
Gently place 2 or 3 biscuits in hot oil. (Biscuit holes can also be fried!) Fry on one side until golden brown. With tongs, gently turn each biscuit over; fry until other side is golden brown. Remove doughnuts from oil; immediately dip into pumpkin glaze. Place doughnuts on cooling rack; cool 3 to 5 minutes or until glaze is set before serving.