Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.
Cream together butter, brown sugar, and granulated sugar until smooth. Add egg and vanilla extract, mix well.
In a separate bowl, whisk together gluten-free flour, baking soda, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until combined. Stir in chocolate chips.
Drop tablespoon-sized balls of dough onto the baking sheet and flatten slightly with your hand.
Bake for 10-12 minutes or until the edges are golden brown. Let them cool on the baking sheet for a few minutes before transferring to a wire rack.