Chocolate Blackout Pudding Shake

What is it?

Frozen custard blended with chocolate pudding and finished with a fudge sauce swirl, this dessert comes in the same milkshake format Shake Shack uses for its standard shakes. The custard gives it a thick, egg-rich base, while the pudding pushes the texture toward something denser and more spoonable than a typical fast-food shake. Chocolate is the only clear throughline here, but it arrives in layers rather than one flat note. Compared with Shake Shack's usual vanilla, chocolate, and seasonal shakes, this one leans harder into cocoa and takes its name from the Brooklyn Blackout cake it references.