Preheat oven to 450°.

Sift together flour, 2 Tbsp sugar, baking powder, baking soda, and pumpkin pie spice. Cut in the butter until the mixture resembles coarse crumbs or grate the butter first and mix into the other ingredients.

In a small bowl, whisk together pumpkin and buttermilk. Add to flour mixture and stir just until combined. Knead gently a few times.

Roll out dough to ½ inch thickness and cut using a biscuit or cookie cutter. Place biscuits on a lightly greased cookie sheet and sprinkle the tops with the remaining sugar.

Bake the biscuits for 10 minutes or until light golden brown. The recipe should make 12-18 biscuits, depending on the size.