Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper.

In a mixing bowl, cream together softened butter, granulated sugar, and brown sugar until light and fluffy.

Add eggs one at a time, mixing well after each addition, then stir in vanilla extract.

In a separate bowl, whisk together flour, baking soda, cinnamon, and salt.

Gradually add the dry mix to the wet mix, mixing until just combined.

Gently fold in the diced apples and walnuts (if using).

Drop rounded balls of dough onto prepared baking sheets, spaced 2 inches apart.

Bake for 12-15 minutes until edges are golden and centers are soft.

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

Whisk together powdered sugar, maple syrup, and milk for the glaze.

Drizzle the cooled cookies with the maple glaze and let it set for 10 minutes before serving.