01 -
Preheat the oven to 350°F. Spray a donut pan well with nonstick baking spray, making sure to coat the center posts.
02 -
In a large bowl, stir together the spice cake mix, pumpkin puree, eggs, and 3 tablespoons melted butter until smooth and no dry streaks remain.
03 -
Transfer the batter to a piping bag or zip-top bag. Snip the corner and pipe the batter into the donut pan, filling each well about three-quarters full.
04 -
Bake for 10-12 minutes, until the tops spring back lightly and a toothpick inserted into a donut comes out clean.
05 -
Let the donuts cool in the pan for 4-5 minutes. Gently loosen and transfer them to a wire rack while still warm.
06 -
Stir the sugar and cinnamon together in a shallow bowl. Brush warm donuts with melted butter, then dip both sides in the cinnamon sugar. Serve warm or at room temperature.