Mix the 1st four ingredients using paddle attachment for 4-5 minutes at medium speed until homogenous batter. Pour the mixture in a square silicone mold with a grease (veg. oil or shortening). Only fill ½ of the mold with the mocha batter.
Pipe Cremfil Dulce de Leche at the center of the batter.
Bake at 180⁰C for 20-25 minutes or until a cake tester inserted in the center of the cake comes out clean . Let it cool.
Melt Carat Dark Coins to use as chocolate decorations.