1 1/4teaspoonpumpkin pie spiceadjust this to how "pumpkiny" you want it.
In a large bowl, mix together instant vanilla pudding mix, pumpkin and pumpkin pie spice. Fold in the thawed frozen whipped topping. Chill in the refrigerator until serving. Serve with ginger snaps, Nilla wafers, or cinnamon graham crackers.