Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large mixing bowl, cream the softened butter, granulated sugar, and brown sugar until light and fluffy, about 3-4 minutes.

Add the egg, vanilla extract, and apple cider to the mixture and beat until combined.

In a separate bowl, whisk together the flour, baking soda, cinnamon, nutmeg, and salt. Gradually add to the wet mixture until just combined.

Fold in the diced apples gently to avoid overmixing.

Scoop generous balls of dough onto the prepared baking sheet, spacing them about 2 inches apart.

Bake in the preheated oven for 10-12 minutes until the edges are golden and centers are set but slightly soft.

Let the cookies cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.

In a small bowl, whisk together powdered sugar and apple cider to make a smooth glaze.

Once cookies are cool, drizzle the glaze over each cookie and allow it to set.