"Frozen margaritas are among the season’s greatest pleasures, and La Vaca serves up one of the best in town, with flavors including tamarind, mango-guava, blackberry, and passion fruit. Unsurprisingly, the cool and boozy cocktails draw many to its boisterous patio in Pilsen and outpost in Lincoln Park, so come prepared for a crowd on weekends." - Naomi Waxman