Only one thing could make these delicious donuts rolled in powdered sugar even better, they're made with beer!
Preheat oven to 375 F°. Melt butter and let cool. Sift all dry ingredients together into large mixing bowl. In a separate bowl, whisk together eggs, melted butter and beer until well-blended. Grease the donut pan with a generous amount of butter (can also use mini Bundt pan). Pour the liquid blend into the dry ingredients all at once, and mix just until blended (do not over mix, or the donuts will be tough). Fill each donut form half full.
Bake in the preheated oven in the middle rack for 8-9 minutes for mini donuts, 9-12 minutes for regular size donuts. The donuts should not be browned on top. Remove pan from oven, let cool for a minute, remove from pan and roll in powdered sugar.