Preheat the oven to 350ºF (177ºC). Grease and flour a bundt pan. Sprinkle 1 teaspoon granulated sugar in the pan, turning the pan to coat. Set aside
In a medium bowl, whisk together flour, cinnamon, baking powder, baking soda, and salt. Set aside
2 ½ cups all-purpose flour, 3 teaspoons ground cinnamon, 1 teaspoon baking powder, ½ teaspoon baking soda, 1 teaspoon salt
In the bowl of a stand mixer, beat the butter and both sugars on low speed until blended. Increase the speed of the mixer to medium-high and beat 3 minutes until light and fluffy
10 tablespoons unsalted butter, 1 cup dark brown sugar, ½ cup granulated sugar
Add eggs one at a time, beating well after each addition and scraping the sides and bottom of the bowl as needed to ensure everything is mixed evenly
2 large eggs
Reduce the mixer speed to low and beat in the applesauce (don’t worry if the mixture looks curdled, it’s supposed to look that way!). With the mixer on low, alternate adding the flour mixture and 1 cup of the reduced apple cider, beginning and ending with the flour. Scrape the bowl occasionally with a rubber spatula to ensure it’s fully mixed. Do not overmix
1 cup applesauce
Scrape the batter into the prepared pan and spread evenly. Bake for 40 minutes or until a toothpick inserted in the center of the cake comes out clean. Remove the cake from the oven and let it sit in the pan for about 10 minutes
After 10 minutes, place a wire rack over the cake and using oven mitts, grip both sides of the cake pan and the wire rack together and quickly and confidently flip the cake over so the wire rack is on the counter and the bottom of the bundt pan is facing up. Tap the cake pan firmly a few times to loosen the cake from the pan. Remove the cake pan