Have you heard of barrel-aged cocktails? No? Well, you're not alone, since there's only one bar in S.F. doing them at the moment, but you're soon to see plenty more if we had to guess.
"We've had people come in and order one regular Martinez and one barrel-aged one side by side," says Blackbird owner Shawn Vergara. "And they always say they can really taste the difference. It has some subtle woody notes." Adds Butler: "It's like all the ingredients meld into one ingredient in the barrel."