Preheat oven to 350° F.
In a large mixing bowl, cream the butter & sugar using a hand mixer until the butter is completely incorporated.
Add the egg and vanilla extract and mix until smooth.
Add the flour, salt, baking powder, and apple pie spice. Mix until flour is completely incorporated, scraping the sides of the bowl as necessary.
Fold in the chopped apples.
Use a 2 Tablespoon cookie scoop to scoop the cookies onto an ungreased baking sheet, spacing them 2 inches apart.
Bake until golden brown; glaze while still warm.
Cool 5-10 minutes on baking sheet, then remove to wire racks to cool completely.