This recipe is adapted from one posted on Trader Joe's Website. They are good, but still have a "box brownie" flavor that doesn't appeal to me. I love the incorporation of the cookie dough with the brownies so I would try doing something similar again, but with homemade brownie batter.
1 stick Unsalted Butter
1 box TJ's Truffle Brownie Mix
1 box TJ's Frozen Chocolate Chip Cookie Dough
Preheat the oven to 350. Bring the butter to room temperature and combine the
eggs with the butter. Slowly add in the brownie mix.
Lightly grease a 9x9x2 pan and place the chunks of cookie dough sporadically around the bottom
of the pan (there may be a few pieces of cookie dough left). Pour the brownie mix over the cookie dough pieces; don't worry if the batter doesn't fully cover all the cookies, it will spread out as it bakes. Bake for 25-35 minutes or until you can stick a toothpick in the center and it comes out clean. For moister cakes, cover with aluminum foil while baking. Enjoy!