Step 1

Preheat the oven to 375 degrees F (190 degrees C). Grease a baking sheet or line with parchment paper.

Step 2

Combine gluten-free flour, xanthan gum, baking soda, and salt in a bowl and set aside.

Step 3

Cream butter, white sugar, and brown sugar together in a bowl. Beat in egg and vanilla extract. Gradually mix in the flour mixture. Stir in chocolate chips. Drop dough by teaspoonfuls onto the prepared baking sheet. Dip spoon in water and lightly flatten each cookie with the back of the spoon.

Step 4

Bake in the preheated oven until golden brown, 9 to 11 minutes. Remove from oven and let cool on the tray for 2 minutes before transferring to a wire rack to cool completely.