Items with a Vietnamese accent are impacting the menus of Asian concepts as well as more mainstream restaurants. Which Wich introduced its take on the classic banh mi sandwich, layering soy-glazed pulled pork, sliced cucumbers, jalapenos, pickled carrots, fresh cilantro and housemade Sriracha mayo on a toasted baguette. Although Which Wich adapted the ingredients to simplify sourcing and execution, this banh mi closely resembles the Vietnamese original. When adapting global street foods, authenticity matters to many consumers: 32% would be willing to pay extra for authentic ethnic fare, according to Technomic’s Ethnic Food & Beverage Consumer Trend Report. But operators should position authenticity in a way that remains true to their menu, Technomic advises, as Which Wich does with this sandwich.