These gluten free chocolate chip marble cookies are all of your favorites in one! We have classic chocolate chip cookies mixed with double chocolate cookies for a rich and flavorful recipe that everyone will love.
Line two baking sheets with parchment paper and set aside.
In a mixing bowl, combine the softened butter, white sugar and dark brown sugar.
Cream with an electric mixer for about 45 seconds or until well combined.
Beat in the egg and vanilla until combined.
Add in the 1 1/4 cup flour, baking soda, baking powder and salt. Mix until combined.
Fold in the chocolate chips.
Divide the dough in half- I highly recommend using a kitchen scale to ensure it's even so we don't end up with one dough that is drier than the other.
Add half to one bowl and the other half to another bowl.
To one bowl, add the extra 1/4 cup of flour and mix to combine.
To the second bowl, add the 1/4 cup of cocoa powder and mix to combine.
Take about 1 tablespoon of each dough and sandwich together. Rip in half, then sandwich together again so you have regular dough, chocolate dough, regular dough, chocolate dough. You can repeat this one more time, but just once is enough. See photos in the post for reference.
Roll into a ball to marble the two doughs together.
Press a few extra chocolate chips on top. Repeat with all dough and add to the prepared baking sheets with enough space in between each.
Bake for 11-13 minutes or until the edges are golden brown. They will continue to set as they cool.
Let cool completely, then sprinkle with flaky salt if desired and enjoy!
Notes
If you do not have dark brown sugar, light brown will work just fine!