The Hershey's chocolate milk shake at Becks Prime is the epitome of what a milk shake should be: thick, extra-creamy and ice cold. It's so thick that you can't possibly drink it through a straw -- that's why they provide a spoon with every order. The creaminess and unbelievable mouth feel come from the high-butterfat soft-serve ice cream Becks uses as the base. About three quarters of the way through filling the cup with ice cream, the soda jerks squirt in a heavy dose of Hershey's chocolate syrup, give it a good whirl on the mixer and then fill the cup with even more ice cream, until it runs over the top. Another whirl at the mixer, and it's ready for you to take your first mouthful and experience what ice cold liquid chocolate tastes like. The servers are used to patrons standing in front of them moaning in ecstasy. It happens all the time.