Egg Cream City

I finally had an Egg Cream yesterday from Uncle Louie G's. It was tasty and made me wonder what the origins of egg creams are. Here's what I found from Wikipedia:

An egg cream is a classic New York City beverage consisting of chocolate syrup (Almost always Fox's U-bet chocolate syrup in New York), milk, and seltzer (soda water), probably dating from the late 19th century, and is especially associated with Brooklyn, home of its inventor, Jewish candy shop owner Louis Auster. It contains neither eggs nor cream.

The essential components of a New York Egg Cream: Fox's U-Bet, Seltzer and Whole Milk. The origin of the name "egg cream" is constantly debated. Stanley Auster, the grandson of the inventor, has been quoted as saying that the origins of the name are lost in time. One commonly accepted origin is that Egg is a corruption of the Yiddish word 'ekt' meaning good or pure, and this was a "good cream". It may also have been called an "Egg Cream" because in the late 1800s there were already many chocolate fountain/dessert drinks using actual eggs (e.g. 'Egg Brin'), and Auster wanted to capitalize on the name. Though almost universally made with chocolate syrup, they were sometimes requested with other flavors, especially vanilla or strawberry.

The egg cream is almost exclusively a fountain drink; although there have been several attempts to bottle it none have been wholly successful, as its fresh taste and characteristic head requires mixing of the ingredients just before drinking. The drink could be described as a "poor man's ice cream soda," as it has a similar overall flavor, but traditionally sold for only a slight premium over an ordinary fountain soda.

According to the Fox's U-bet chocolate syrup website, the recipe for "the original Brooklyn Egg-Cream" is:

Take a tall, chilled, straight-sided, 8oz. glass
Spoon 1 inch of U-bet Chocolate syrup into glass
Add 1 inch whole milk
Tilt the glass and spray seltzer (from a pressurized cylinder only) off a spoon, to make a big chocolate head
Stir, Drink, Enjoy.