Cream the softened butter and sugars together until light and fluffy.
Add the egg and vanilla extract and mix until combined.
In a separate bowl, whisk together the flour, baking soda, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
Stir in the maple syrup until well combined.
Chill the dough for at least 30 minutes (or overnight).
Preheat oven to 375°F (190°C).
Scoop rounded tablespoons of dough onto a baking sheet lined with parchment paper.
Bake for 10-12 minutes, or until the edges are golden brown and the centers are still slightly soft.
Let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.
