Preheat the oven to 375°F and prepare the donut tins by spraying them with cooking spray. Set aside.
cooking spray
In a large mixing bowl, combine the cake mix, pumpkin puree, cinnamon, pumpkin pie spice, and maple extract. Use a handheld mixer to blend until the batter is smooth and free of lumps.
1 box yellow cake mix, 1 (15 oz.) can pumpkin puree (not pumpkin pie mix), 1 tsp ground cinnamon, 1/2 tsp pumpkin pie spice, 1 tsp maple extract
Scoop the batter into a piping bag. If you don’t have one, a Ziploc bag works too—just cut off one corner to create a makeshift piping bag. Pipe the batter into the donut tin, filling each cavity only halfway.
Bake for 5 to 7 minutes, or until a toothpick inserted into the donuts comes out clean.
For toppings, you can either dip the top of the donut into a bowl of confectioners' sugar to coat it or dip it into melted butter and immediately dust with cinnamon sugar. If you prefer, you can also leave them plain.
melted butter (optional), confectioners' sugar (optional)