Marbled Cake Donuts

Preheat the oven to 350 degrees and spray two donut pans with cooking spray.
Marbled cake donuts. Preheat oven to 350 degrees. Most doughnuts are made from plain white or chocolate batter and they are glazed with plain white or chocolate icing. How to make marbled doughnuts. Prepare a doughnut pan with non stick cooking spray.
Whisk together the flour corn starch baking powder and salt in one bowl and set aside. In a medium bowl combine flours baking powder and salt.
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