If necessary, bake doughnuts in doughnut pan in two batches, washing pan and coating again with cooking spray before filling with the remaining batter.
Cream Cheese Drizzle
Thin 2 oz. cream cheese with milk, 1 to 2 Tbsp. at a time, to a drizzling consistency. Drizzle doughnuts with cream cheese; let stand until set.
Melt 2 oz. dark chocolate. Drizzle doughnuts with chocolate; let stand until set.