Owwwh, it seems expensive to buy a cake like this
. Now all you have to do is buy a heart-shaped brownie cake. Next at home you make raspberry buttercream. The material?
Prepare raspberry sauce that you can buy at the pastry shop, then mix it with butter, powdered sugar, lemon juice and a pinch of salt. After a delicate mixture you can pour the dough onto the brownie cake and stack it again with a brownie cake on top.