1 ½Cupgluten free 1-1 flour mix that contains xanthan gum240g (if your mix does not contain xanthan gum, add 1/2 tsp now (1g))
¾Cupunsweetened dutched cocoa powder87g
1tspbaking soda8g
¾tsp.Salt4g
1 ½cupsmilk chocolate chopped into ½ inch pieces240g
1 ½cupsdark chocolate chopped into ½ inch pieces240g
Instructions
In a large bowl, using an electric mixer, cream together the room temp butter, brown sugar, and white sugar until lighter and fluffy (3-5 minutes – don't skimp on this step!). Add in the egg plus egg yolk and beat until smooth. Then, in a small bowl, stir together the vanilla extract and the instant coffee granules until dissolved, then pour into the cookie dough and beat until combined. Add in the flour (and xanthan gum if needed), unsweetened dutched cocoa powder, baking soda, and salt and mix by hand with a wooden spoon or spatula until fully combined (it will be stiff). Finally, mix in 1 cup each (160g) of the chopped milk chocolate and dark chocolate until they're fully distributed. Scoop dough into a smaller bowl, cover with plastic wrap, and chill in the fridge for 1 hour.
Once the cookie dough is chilled, preheat the oven to 350° Fahrenheit (180° C, no fan) and line a cookie sheet with parchment paper. Then start scooping out the cookie dough and rolling it into 2 inch round balls. Carefully press a few pieces of the extra chopped chocolate (I did a mix of milk and dark) then place 4-5 balls on the cookie sheet (~4 inches apart) and bake for 10-12 minutes (I do exactly 10 - they should be slightly underdone!). Let cookies cool COMPLETELY before removing from the cookie sheet (15-20 minutes) – they will be chewy in the center and crispy on the edges!