Replace some of the milk with applesauce to create a more tender, moist crumb while reducing fat—this keeps cake donuts from becoming dry while enhancing the warm spice flavors.

Brush warm donuts lightly with melted butter immediately after baking, then roll in cinnamon-sugar mixture while still warm so the coating adheres perfectly and creates a sweet crust.

Use no more than ¼ cup pumpkin puree per box of cake mix to enhance flavor without overwhelming the vanilla base or creating an overly dense texture that prevents proper rise.

Mix the batter just until combined (about 8-10 strokes) to avoid developing gluten, which would result in tough, chewy donuts instead of light, tender cake donuts with a delicate crumb.

Allow donuts to cool for 5-10 minutes before applying icing sugar glaze so it sets properly and creates a smooth finish rather than melting off or becoming too thin and runny.