– 1 (15 ounce) box yellow cake mix – 1 (15 ounce) can canned pumpkin (not pumpkin pie filling) – 1 teaspoon cinnamon – 2 teaspoons pumpkin pie spice (or 1 1/4 tsp. cinnamon, 1/2 tsp nutmeg, 1/4 tsp cloves & 1/2 tsp ginger) – 1/2 cup vegetable oil – 2 teaspoons vanilla extract – 3 large eggs