Double-Chocolate-Whammy Groom’s Cake

This is the perfect marriage of my best and most beloved chocolate cake from The Cake Bible, The Chocolate Domingo, and my fudgiest brownie. The brownie, after baking, is chilled and then cut into pieces and folded into the chocolate cake batter. The result is an amazingly tender, full-flavored chocolate cake, with little pockets of rich chocolate and nuts distributed throughout. It creates the impression of miniature truffles enveloped in cake. It is normally impossible to suspend s