I made these for the first time for a Valentines gathering, they were enjoyed by many and got good reviews. Try it with other cake mix flavors, lemon cake mix works well also. Just let your imagination be your guide!
Preheat oven to 350 and grease or spray with no stick spray a 9"x13" baking pan or if you want a thicker brownie use a 9"x9" pan.
In bowl combine cake mix, egg, oil and melted butter and stir to blend. The mixture will be slightly lumpy and that's how you want it. Now fold in crunched up Oreo cookies, I used the Oreo red velvet cookies, but the regular chocolate ones work just fine, also you can amp it up with double stuff! Spread batter evenly into the prepared baking pan.
In mixing bowl combine cream cheese, egg, sugar and vanilla, than beat with mixer till creamy smooth. Now you can drizzle cream cheese mixture over the top of the brownie layer. Using a butter knife swirl the cream cheese into the red velvet layer, being careful not to go deep into the red velvet layer. You just want the cream cheese layer to be on the surface of the brownie. Bake for 30 to 35 minutes, the cream cheese will be a light toasty golden color.
Cut into desired sized squares and serve. Store in air tight container in the fridge. Remove from fridge about an hour before serving. Also if you want to dress them up drop your brownie squares in a cupcake paper.