yes, i cheated i started with a regular dark fudge cake from duncan hines. A 1/2 box of mix then a 1/3rd cup of cocoa and it comes out black as pitch. real black moon filling would kill you (it’s shortening and powdered sugar.) i just whipped up a 1/4 cup of heavy cream and a few tablespoons of powdered sugar. btw confectioner’s sugar has corn starch in it, powdered sugar is just sugar. sometimes it matters. not in this case.