Pour the apple cider into a medium saucepan and bring it to a boil over medium-high heat. Once boiling, lower the heat to a simmer and allow it to reduce for about 20–25 minutes, or until it thickens and measures approximately 1 cup. Remove from heat and let it cool for a few minutes.
Prepare your oven by preheating it to 350°F (175°C). Lightly grease a donut pan with non-stick cooking spray or butter to ensure easy removal of the donuts after baking.
In a large mixing bowl, combine the melted butter and granulated sugar, stirring until well blended. Add the reduced apple cider and whisk to combine smoothly. Incorporate the eggs, one at a time, whisking until everything is homogenous.
In a separate bowl, whisk together the sifted flour, baking powder, baking soda, ground cinnamon, nutmeg, ginger, and salt until evenly mixed.
Gradually fold the dry mixture into the wet ingredients with a spatula, mixing gently until just combined. Do not over-mix — a few small lumps are perfectly fine.
Spoon the delightful batter into the prepared donut pan, filling each cavity approximately three-quarters full to allow for rising.
Place the pan in the preheated oven and bake for about 10–12 minutes, or until the donuts spring back when lightly touched, and a toothpick inserted in the center comes out clean. Allow the donuts to cool in the pan for about 5 minutes before transferring them to a wire rack to cool completely.
While the donuts are still warm, mix the powdered sugar and cinnamon sugar in a shallow bowl. Submerge each donut in the sugar mixture, gently rolling until fully coated for a sweet, flavorful finish.
Treat yourself to these delightful donuts warm or at room temperature. They pair perfectly with a hot mug of apple cider or your favorite coffee for a cozy experience.
Notes
Present the donuts on a charming rustic wooden platter surrounded by thin apple slices and a light dusting of cinnamon for an inviting fall-inspired display.