First, prepare the brownie mix according to the package instructions. Once combined, pour half of the brownie batter into your prepared baking pan and spread it evenly across the bottom. After that, carefully place a single layer of Oreos right on top of the brownie batter. The stuffing of the Oreos should be facing up, which means the upper part of the Oreo will get a lovely crunch when they bake. Next, take your cookie dough and flatten it into a layer that you can gently place over the Oreos.
Once the cookie dough layer is added, spread the remaining brownie batter on top to create a final layer that seals everything inside. If you have a sweet tooth like me, consider sprinkling some chocolate chips on top for that gooey, melty surprise. Now, pop your assembled masterpiece in the oven and let it bake for about 30-35 minutes. You want the top to look set but a little bit gooey in the center for that perfect brownie texture.
Pro Tips for Best Results
I tested this recipe three ways to get the measurements right, and the best result came with a balance of the layers. If you use too much cookie dough, it can overpower the brownie layer. Trust me, I’ve had my fair share of misadventures in flavor ratios! Make sure to use the right mix; I’ve found that the classic fudge brownie mix complements the Oreos beautifully.
Another tip is to let the brownies cool before slicing into them. I know it’s tempting to dig right in, but giving them time to set allows the layers to meld perfectly and makes for cleaner cuts. If you’re feeling generous, a dusting of powdered sugar or a drizzle of chocolate syrup can take these brownies to the next level.
Lastly, if you’re making these for an event, consider making them a day ahead. I find that the flavors deepen overnight, creating an even richer taste. They’ll be just as delicious—and maybe even better!
Common Mistakes to Avoid
One common mistake I’ve made when making Slutty Brownies is under-baking them. I understand the temptation to pull them out of the oven a bit early, but trust me—allow them to bake until they are set on the edges while staying a tad soft in the center. If you underbake too much, they’ll fall apart when you cut them, and nobody wants that. (See the next page below to continue…)