Preheat oven to 350 degrees and grease a 24-cup mini muffin tin well.
In a large bowl, mix together flour, sugar, baking powder, salt, cinnamon, nutmeg, ginger, all spice, and cloves.
Add in the egg, and mix until combined.
Add in buttermilk, vanilla extract and melted butter. Mix until just combined.
Lastly, add in the pumpkin puree and mix until just combined.
Drop about 1 Tbsp of batter into each mini muffin cup.
Bake for 9-10 minutes, or until the pumpkin donut holes ‘spring’ back when touched.
Once the donuts have cooled, roll each donut hole in the melted butter, and then immediately roll in the cinnamon sugar mixture.
Enjoy!