This Isaan chain’s latest offshoot combines Thai street food faves with an elegant cocktail bar in a chic mix of bright turquoise, colorful patterned tiles and retro furnishings. Northeastern fare is treated to added wow factor, like grilled chicken set alight at the table with a shot of rum. Old favorites come with imported, premium substitutes like the laab with New Zealand mussels and spicy Australian beef salad.