Brush doughnuts with melted butter. Cover and let rise until doubled, about 20 minutes. Heat oven to 425 . Bake 8-10 minutes or until golden. Immediately brush with melted butter and shake in Cinnamon Sugar or, if desired, spread with a glaze.
Doughnuts are best if eaten the same day they are made.
Leftover doughnuts will keep their fresh-baked goodness if frozen the same day they are baked. To freeze, wrap carefully in heavy- duty aluminum foil. Freeze up to a month. To serve, thaw glazed doughnuts in wrapper 2 hours at room temperature. Makes enough to glaze about 1 dozen doughnuts.