In honor of World Cocktail Day, a survey by World Class reveals the most popular cocktails being served in bars.
The survey finds that retro drinks certainly seem to be back in style. Topping the list as the most popular cocktail is the Old Fashioned, made by mixing sugar with bitters, bourbon whiskey, and a twist of citrus rind, followed by the Italian classic the Negroni, which is made with gin, sweet vermouth and an Italian liqueur.
Here are the top 10:
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