They would yank the blood sucking creature off the fish, then stab its brain before squeezing out [music] its blood. The blood would be boiled with red wine to make a sauce, while the rest of the lamprey [music] was baked. It was then served to royalty covered in the blood sauce.
And this dish was eaten [music] on Christmas Eve when Christians weren't allowed to eat meat. You see, lamprey [music] is fatty and meaty, even though it's technically a fish, making it a perfect loophole for rich people [music] who wanted to eat meat when they shouldn't.