This fudge is divinely delicious-and way easier than you'd think. Customize it just for your family, with everything from peanut butter to marshmallow.
San Francisco chocolatier Michael Recchiuti prepared the gooey marshmallow topping for this exquisite chocolate cake on a porch at Prather Ranch using just a hot plate and a hand-cranked beater. Recchiuti decorated the marshmallow with shards of his own graham crackers, but store-bought ones work just fine.