Fatboy won’t stay Slim for long! (Shoot me now.) Shawarma at King Tut’s, steamed buns at Bao Down, elusive brisket sandwiches at Music City Brisket — food trucks have fed us well over the past year. But nothing snapped our heads back like the latest venture from Riffs co-founder B.J. Lofback, who serves Korean short-rib lettuce wraps, bulgogi beef tacos and immaculate rings of kimbap (Korea’s answer to sushi) that deliver knee-weakening payloads of umami. Get ready to meet your new best friend: the addictive salty-sweet condiment gochujang.