A former nightclub that was reborn in 2012 as a temple to serious Chinese cuisine, Mr. Wong has fast emerged as one of the city’s most talked about dining destinations. The menu of craft cocktails and Cantonese classics, like clams in XO chili sauce and silky mapo tofu, won’t disappoint. But the impeccably-crafted dim sum is the star: don’t leave without trying the har gua or scallop and prawn shumai topped with roe.