Cream butter softened butter and sugars in your electric mixer. Add the egg, yolk, and vanilla and beat till creamy, about 1-2 minutes.
Next, combine flour, cocoa, soda, baking powder, and salt in a small bowl mkixing bowl and slowly add it into the sugar mix. Mix until everything is combined. Cover and chill in the fridge while you make the 2nd dough.
Chocolate Chip Cookie Dough:
Add softened butter and sugars in your mixer, similar. to the brownie m.ix. Add the egg, yolk, and vanilla. Beat the ingredients until everything is blended.
Whisk the flour, soda, baking powder, and salt in a small bowl mixing bowl on the side. Add to the mixture in the electric mixer with the chocolate chips. Stir until ingredients are well mixed together.
How to cook:
Preheat oven to 350
Take 1 tbs of the brownie mix, roll it into a ball. Same with the cookie dough mix. Press together to make a cookie shape.
Bake these cookies for 10-15 minutes (I took them out around 13 minutes so check on them then) and let cool on your baking cooling racks. Enjoy!