Heat oven to 400 degrees F.
Grease donut pan.
Add all dry ingredients in a mixing bowl and whisk.
Lightly whisk wet ingredients in a small bowl.
Add wet ingredients to dry (or vice versa) and stir just until blended.
Spoon batter into pastry bag or ziploc (and cut a small hole in bottom corner).
Fill each cup about 3/4 way full and bake for about 8 minutes, or until top springs back.
Remove from pan and cool on cooling rack.
Sprinkle with powdered sugar or dip or drizzle with chocolate sauce.
For the glaze, in small saucepan, heat the butter, corn syrup and vanilla extract. Once the butter is melted, add the chocolate. Once melted, remove from stove.
Dip one side of donut in chocolate glaze and sprinkle with nuts or sprinkles.