Cream together butter and crisco, then add sugar, egg, vanilla and pumpkin mixing well. In separate bowl whisk together flour, tartar, soda, salt and 1 tsp pumpkin pie spice. Then add to creamed mixture, mixing until it comes together.
2In a small dish mix together 1/2 c sugar and 1T pumpkin pie spice for rolling.
Shape dough into 1 1/2" balls, roll in sugar mixture, place on cookie sheet, flatten slightly with bottom of glass. Bake at 375 for 10-13 minutes. Mine came out perfect at 12 min.
3Remove pans from oven allow to cool on pans 2 minutes then remove to racks to cool completely.