Yridian brandy

From Memory Alpha, the free Star Trek reference.

Yridian brandy is an alcoholic beverage made by the Yridians. Worf had a bottle in his private stock that he was saving for a special occasion. That special occasion came in 2372, when he was able to share it with his childhood hero, Klingon Dahar Master Kor. (DS9: "The Sword of Kahless")