Preheat oven to 425°F. Spray donut pan with nonstick cooking spray.
In large mixing bowl, sift together cake flour, sugar, baking powder, nutmeg and salt. Add buttermilk, eggs and butter and beat until just combined. Fill each donut cup approximately 2/3 full.
Bake 7–8 minutes or until the top of the donuts spring back when touched (this is the timing for mini donuts. Not sure what the time is for full size ones). Let cool in pan for 4–5 minutes before removing. Finish donuts with chocolate ganache or vanilla glaze.
How to Make the Glaze
In small bowl, stir together sugar, milk and vanilla extract until sugar is completely dissolved. If mixture is too thick, add a little more milk. If too thin, add more sugar.
You can add a couple of drops of food coloring for different colored glazes. Dip top of donuts in glaze and let the glaze set and dry before serving.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.