The origin of the Old Fashioned starts with the origin of the cocktail, or at least the term cocktail.
The original definition, published in The Balance and Columbian Repository in 1806, was: “A stimulating liquor, composed of spirits of any kind, sugar, water, and bitters… vulgarly called a bittered sling.”
If this sounds familiar, it should, because it’s essentially the recipe for an Old Fashioned (even if we don’t know the exact proportions… so maybe not exactly, but close enough).
For decades, this was the standard definition of a cocktail. That is, until the late 1800s, when cocktails began to evolve to include citrus, vermouth, and other ingredients that deviated from that original formula.
It’s around this time that the term “old fashioned” starts popping up. Legend has it that bar patrons, longing for the original style, would order their drinks “the old fashioned way” for example: “I’ll take a whiskey cocktail, the old fashioned way.”
And while today an Old Fashioned is almost unquestionably made with whiskey, I’d argue we should extend them to other spirits, as they were originally, and let them shine.