Preheat oven to 350 degrees. Prepare your donut pan with cooking spray.
In a medium bowl, whisk together the pureed apple, vanilla vegetable oil, eggs and granulated sugar.
In another bowl, mix together the apple pie spices, the salt, the baking powder and the flour.
Mix together the wet ingredients with the dry ingredients, mixing well.
Using a mini ice cream scoop (my favorite method) or a spoon, fill each donut well with about a quarter cup of batter or so. You want them about 3/4 full.
Bake in a preheated 350 degree oven for 12-15 minutes or until a toothpick inserted in the donut comes out clean.
Remove from oven and allow to cool for 5 minutes in the pan.
Remove the donuts and place on a cooling rack to continue cooling.
While still warm, dip them into the melted butter and the apple pie spiced sugar mixture. Use 1 cup of sugar and 2 Tablespoons of apple pie spice. Dip the donut in butter, then dip in spiced sugar mix.