During the Lost Weekend, on March 12, 1974, Lennon was at The Troubadour nightclub in Hollywood where musician Harry Nilsson introduced him to the Brandy Alexander cocktail.
The Brandy Alexander, which eventually became Lennon's favorite cocktail, was made with brandy or cognac, creme de cacao, and cream. He often called them milkshakes.
Lennon became renowned for his love of Brandy Alexanders even after the Lost Weekend was finally over. He got back with Yoko, and they had their first child shortly after.