First, think to yourself: "Pineapple Upside-Down Cake". Now, replace "pineapple" with "brownie" and "cake" with "brownie." Now you are getting the idea. This brilliant notion came to me by way of Vickie, the designer behind A Mano Jewelry and, apparently, a whiz in the kitchen.
Starting with a buttery, brown sugar base, a layer of bite-sized brownies is then coated with decadent brownie batter, baked and then flipped for the most decadently, buttery, chocolatey treat you could possibly imagine. Advice: eat now, and diet another day.
Note: Use either pre-packaged brownie bites, such as these, or homemade (almost erring on under-baked) brownies for the topping part; they will simply melt into the brownie batter in the most deliciously chocolaty fashion.