In a saucepan, bring the apple cider to a boil over medium-high heat. Reduce the heat and simmer for about 20–25 minutes, or until it’s reduced to about 1 cup. Let it cool slightly.
Preheat your oven to 350°F (175°C) and lightly grease a donut pan.
In a large bowl, combine the melted butter, granulated sugar, and reduced apple cider. Whisk in the eggs until well incorporated.
In another bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, ginger, and salt.
Gradually add the dry ingredients to the wet mixture, stirring until just combined. Be careful not to over-mix; some lumps are okay.
Spoon the batter into the prepared donut pan, filling each cavity about 3/4 full.
Bake in the preheated oven for 10–12 minutes, or until a toothpick inserted in the center comes out clean. Let them cool in the pan for 5 minutes before transferring to a wire rack.
While the donuts are still warm, mix the powdered sugar and cinnamon sugar in a shallow bowl. Roll each donut in the mixture until fully coated.
Enjoy the donuts warm or at room temperature with your favorite apple cider or coffee.
Notes
Arrange the donuts on a rustic wooden platter garnished with apple slices and a sprinkle of cinnamon for a charming fall-inspired look.