Beat the melted butter and the brown sugar until well-mixed.
1 cup Brown sugar, 1 cup Butter
Add the eggs, one at a time. Beat well after adding each egg.
2 Eggs
Add the vanilla. Remove the paper towel from the pumpkin puree and add the reduced puree to the mixture.
1 cup Pumpkin puree, 1 teaspoon Vanilla extract
Using a spatula, mix in the dry ingredients. Gently mix. Do Not overmix.
Pour the batter into a piping bag and pipe the batter into the donut pan's cavity.
Bake for 15-18 minutes. or until their surface is shiny and set.
Leave in the pan for a few minutes and before they are cooled down, roll them into the cinnamon sugar.
½ cup Sugar, 1½ tablespoon Cinnamon
Notes
Pumpkin puree right out of the can contains a lot of water. We need to remove all that juice, and that is how we do it; Pour the pumpkin puree into a large bowl and place a thick piece of paper towel on top of it to absorb the water out of the puree.