Of course it has no eggs nor any cream, which you know, are expensive. This drink is sometimes known as a “phosphate” since once upon a time soda jerks put dabs of diluted phosphoric acid in them to give a little extra kick. Sound scary? Actually it’s not, though when I went to look for phosphoric acid in the pantry I found I was fresh out. So I made do with the usuals: chocolate syrup, whole milk and soda. You start by adding about two tablespoons of chocolate syrup to a glass of your choice (Fox’s U‑Bet syrup is the classic).
Next about half a cup of whole milk.
Stir that to blend. Here’s where a long spoon comes in handy.
Then add maybe another half to three-quarter cup of very cold seltzer water.
Insert straw and drink!
Straws are critical to consuming fountain drinks, for not only is there a foamy head at the top that gets all over your nose, there’s always a little residual chocolate syrup hanging around at the bottom of the glass waiting to be slurped up. Talk about a June day luxury.