Oh what a tangled web we weave . . . Chocolate cake spider inside a web covered lair. Exterior inspired by The Cake Blog except I thought it might be a good idea to use white chocolate over ganache for the web rather than marshmallows. Mistake. Big mistake. You can't really cut through a brittle chocolate web with any degree of grace. Even with a really hot knife. Use the marshmallows. Trust me. Spider on the exterior is hand piped chocolate covered in sparkling sugar.