Step 1

Preheat the oven to 350°F.

Step 2

Line a baking sheet with parchment paper or a silicone baking mat.

Step 3

Cream together the melted butter and brown sugar.

Step 4

Add the egg yolks and mix until combined.

Step 5

Add the baking soda, salt, xanthan gum(omit if you are using a flour that already has xanthan gum), and vanilla and mix until combined.

Step 6

Add the flour, and mix until incorporated. Then mix in the chocolate chips

Step 7

Scoop using a 1/4 cup cookie scoop, or measuring cup, scoop the dough and place cookies 4 inches apart on the prepared baking sheet. (5 or 6 to a sheet.)

Step 8

Bake for 12-15 minutes. The cookies should spread and will lose their doughy shine, but will still be very soft.

Step 9

Allow to cool on the baking sheet for a few minutes before moving to a cooling rack to finish cooling.