According to the Guinness Book of World Records the largest cocktail ever recorded was a margarita made in Las Vegas, on October 15, 2010, by the folks at Ricardo’s Mexican Restaurant as a way to celebrate the thirtieth anniversary of the restaurant. Here’s a pic:
To achieve this feat they poured in a giant glass (ok, tank) measuring 14 ft. 10 in. tall and 10 ft. in diameter with 1,215 US gallons of Tequila, 750 gallons of sweet and sour mix, 396 gallons of triple sec, 187 gallons of lime juice, nearly 5,000 gallons of spring water and 20 lbs. of salt. (Note: I’d have gone for the simpler 2 part Tequila, 1 part agave nectar, 1 part lime recipe but I wasn’t in charge.)
The record breaking margarita “weighed” in at 7,627 gallons, enough to serve over 80,000 individual margaritas! Now that’s a party!
(FYI, the previous record, at merely 7,038 gallons, stood for nearly 10 years.)