Preheat oven to 350 degrees F. Grease donut tin and set aside.
Add flour, sugar, and baking powder to a large bowl and stir to combine.
Create a well in the center of the dry ingredients and pour in milk.
Stir and few times then add in the egg. Mix well.
Add melted butter to the bowl and mix well.
Fold in 1/2 tbsp of cinnamon.
Spoon your mixture into your donut pan. I used two heaping tablespoons of batter per donut.
Bake for 10-12 minutes or until done.
While they are baking, mix up ingredients for coating and add to a brown paper bag.
When donuts are done, remove from oven. Remove from pan immediately and then place in brown paper bag. Shake to coat.
Put on a wire rack to cool.
These are best served warm so eat right away or heat in microwave before serving.