Missouri: S'mores Concrete, Ted Drewes Frozen Custard, St Louis

©Ted Drewes Inc./Facebook

Ted Drewes' famous Concrete shakes are so thick that staff still flip them upside down, just to prove how deliciously dense they are. There are plenty of mouth-watering combos, but the summer camp-inspired s'mores flavor is a sure bet. It's a blend of chocolate, marshmallow, and Graham crackers, generously finished with toppings.