Dove Promises Valentine's Cake

I got some of these Dove Promises in my Christmas stocking and absolutely loved the way they looked - that beautiful swirl.  I thought that they'd make a lovely cake decoration and so for Valentine's day, and because my husband loves chocolate, I made a six inch square chocolate cake with chocolate buttercream completely tiled with these Promises.  Overall - it took 60 chocolates to cover the cake! He loved it.