I only have two children (as far as I know). And both asked me to make them Black Magic Wedding Cakes. I couldn’t have been happier if they had proclaimed “I love you, Mom” on the Fenway Park Jumbotron. Last year, it was my daughter Claire and Gordy’s three-tiered cake with buttercream frosting. This year, Raegandrew (Raegan and my son Andrew) opted for all chocolate. No tiers, no “3D frosting.” Just regular birthday-style cocoa frosting. Six cake recipes yielded exactly three 9” cakes for guests and one 6” three-layer cake for the bride and groom to smear all over each other’s faces. Claire truly topped it all with her poetic sculpture of intertwined trees…