The latest Cocktail Challenge, in which local bartenders challenge fellow bartenders with an ingredient of their choice.

Enochs says his first attempt at the cocktail was “way too beefy—it felt like you were drinking tomato-beef soup.” It didn’t help that he doesn’t really like Bloody Marys in the first place. But once he adjusted the proportions, Enochs discovered that he’d created a drink he actually enjoyed. All it took was a little bone marrow.