By Emily Monaco In February 2021, chef Andy St. Ange conquered the hearts and bellies of the judges at the South Beach Food & Wine Festival Burger Bash with American Social’s signature Social Smash Burger. “The experience was awesome, especially as the first event coming out of COVID,” St. Ange says. “To be able to win that, it was kind of a welcome back to the world for us.” Made with two quarter-pound patties and a pretzel bun, the award-winner is an “upscale” burger St. Ange says offers some “subtle nuances that people just don’t expect.” “It kind of catches them off-guard in a pleasant way…