01 -
Bring apple cider to a boil in a small saucepan over high heat. Boil for 1 minute, then lower to simmer and reduce to 1/2 cup. This process takes about 10 to 15 minutes. Allow the reduced cider to cool.
02 -
Preheat oven to 375°F. Spray a donut pan with nonstick baking spray containing flour.
03 -
In a large mixing bowl, whisk together cake flour, baking powder, cinnamon, nutmeg, and salt. Set aside.
04 -
In a medium bowl, whisk together the cooled reduced cider, milk, brown sugar, granulated sugar, egg, melted butter, and vanilla extract.
05 -
Pour liquid mixture into the flour mixture and stir gently until just combined. Do not overmix.
06 -
Transfer batter to a large zip-top bag and cut off a 1/2-inch corner. Pipe the batter into each donut cavity, filling each about halfway.
07 -
Bake for 8 to 10 minutes or until a toothpick inserted in the center comes out clean. Remove from oven and let donuts cool in the pan for 2 minutes. Transfer to a wire rack.
08 -
In a medium bowl, combine granulated sugar and cinnamon. Melt butter in a separate microwave-safe bowl.
09 -
Brush each donut with melted butter, then dip into the cinnamon sugar mixture to coat completely.
10 -
Allow donuts to cool briefly before serving. Enjoy warm or at room temperature.