Start by pouring 2 cups of apple cider into a saucepan and bring it to a boil over medium heat. Stir occasionally, and let it simmer until the cider reduces to about ¼ cup, which should take around 15-20 minutes. Remove from heat and let it cool completely before using it in your dough.

In a separate saucepan, melt ½ cup of unsalted butter over medium heat. Keep stirring as the butter melts; it will begin to foam and then turn a beautiful golden brown while developing a nutty aroma, which should take about 5-7 minutes. Remove from heat and allow the browned butter to cool slightly while you prepare the dry ingredients.

In a large mixing bowl, whisk together 2 cups of all-purpose flour, 1 teaspoon of baking powder, ½ teaspoon of baking soda, 1 tablespoon of cornstarch, 1 tablespoon of apple pie spice (or pumpkin spice), and a pinch of salt. Ensure all ingredients are well combined.

In another bowl, combine the cooled browned butter, ½ cup of light brown sugar, ¼ cup of granulated sugar, 1 egg, the cooled reduced apple cider, and 1 teaspoon of vanilla extract. Blend until creamy and fully incorporated.

Gradually fold the dry mixture into the wet ingredients, stirring until just combined. Cover the dough with plastic wrap and let it rest in the refrigerator for at least 30 minutes.

Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.

Once the dough has chilled, scoop out heaping tablespoons of dough and roll them into balls. Place on the prepared baking sheet, spacing them about 3 inches apart.

Bake the cookies in the preheated oven for 9-11 minutes until edges are set and centers are slightly puffed and soft. Cool for about 5 minutes before transferring to a wire rack.

Allow your Apple Cider Cookies to cool completely before coating.

Prepare a cinnamon-sugar mixture by combining ¼ cup granulated sugar with 1 tablespoon ground cinnamon. Brush warm cookies with melted butter, then roll in the cinnamon-sugar mixture.

For icing, combine 1 cup of powdered sugar with 1-2 tablespoons of reduced cider and drizzle over cooled cookies.