To prepare the Ultimate Chocolate Brownie Cookie Bake goods recipe, first you need to gather your ingredients. First, you'll need a large mixing bowl, an electric mixer, and some chocolate chips. You can use any type of chocolate chip cookie mix you like, but I prefer to use semi-sweet chocolate because it's easier to work with. Then, preheat your oven to 350?F (180?C) and grease the bottom and sides of an 8x8-inch baking pan with non-stick cooking spray. Set aside. In the bowl of the mixer or food processor, cream together the butter and brown sugar until light and fluffy. Add in the vanilla and vanilla extract and beat until combined. Pour the batter into the greased and floured pan. Bake the brownie cookies for 20 to 25 minutes or until the edges are golden brown. Remove from the oven and let cool before cutting into squares.