Grease brownie dish + spoon half of the brownie batter into the bottom of the brownie dish. Place the layer frozen biscoff on top of the first layer of brownie mix. Spoon the rest of the brownie batter on top of the frozen biscoff and spread evenly.
Place the lotus biscoff cookies directly on top, pressing them into the batter. I used 7 cookies, breaking on in half. Bake for 40 minutes, or until a toothpick comes out clean. Remove the brownies and let cool for 15 minutes.