Preheat your oven to 350°F (175°C).

In a large mixing bowl, cream together unsalted butter and brown sugar until light and fluffy.

Add maple syrup, egg, and vanilla extract; mix until fully combined.

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

Gradually combine the dry ingredients with the wet ingredients, stirring gently until just combined.

Scoop rounded portions of dough onto a baking sheet lined with parchment paper, spacing them 2 inches apart.

Bake for 10-12 minutes, or until edges are lightly golden.

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