How can I make a delicious dessert with layers of both brownie and cake?

To make a delicious dessert with layers of both brownie and cake, you can start by baking a layer of brownie in a square or rectangular pan. Once the brownie layer is baked and cooled, you can then pour cake batter on top of the brownie layer and bake it again until the cake is cooked through. You can repeat this process to create multiple layers of brownie and cake. Finally, you can top the dessert with frosting, ganache, or whipped cream for added flavor and decoration.