Finishing sugar, for topping the muffins (optional)
Preheat oven to 400°F. Line 12 muffin cups with muffin liners and spray with cooking spray. Set aside.
In a large bowl, combine the pumpkin puree, sugar, vegetable oil, eggs, and vanilla extract. In a separate bowl, combine the flour, baking powder, baking soda, cinnamon, nutmeg, ginger, cloves, and salt.
Incorporate the dry ingredients into the wet, stirring until well combined. Fold in the Grand Chips. Sprinkle with finishing sugar, if using.
Scoop batter into prepared muffin tins, filing just over ⅔ of the way. Bake for 5 minutes at 425°F, then turn oven to 375°F and bake for an additional 15 minutes. Allow to cool slightly before serving!