A Rokeg blood pie.
Rokeg blood pie is a traditional Klingon food.
William Riker claimed to enjoy Rokeg blood pie while aboard the IKS Pagh in 2365. (TNG: "A Matter Of Honor")
Rokeg blood pie is one of Worf's favorite foods; when he was a child, his adoptive mother Helena Rozhenko learned how to prepare it just for him. He ordered the dish on the Rotarran in 2374. (TNG: "Family", DS9: "Sons and Daughters")
It is traditional to eat Rokeg blood pie on the Day of Honor. (VOY: "Day of Honor")