In a shallow mixing bowl combine sugar, cinnamon, and pumpkin pie spice. Whisk together.
While the oil is heating, lay your biscuits on a flat cutting surface. Use a small round 1 inch cookie cutter to cut the middle out of each biscuit.
Carefully place donuts into 350 degree oil. Let cook 30-45 seconds on each side, or until the dough turns golden brown.
Remove donuts from the oil and place in the cinnamon sugar mixture. Flip over and coat both sides.
Storage:Store any leftover donuts in a Ziploc bag or an airtight container at room temperature. Be sure that if you are using a Ziploc bag, you squeeze all of the air out of it. The donuts will last for about 1 to 2 days, although they will begin to lose their softness pretty quickly! You can also opt for storing them in the fridge if you prefer.