Diners have taken to social media to suggest the bizarre snack of two pork patties, bacon and Sichuan pepper sauce was inspired by “concrete or pollution”, while one asked, ‘burger or rock?’ The bun’s odd gray hue was said to be “the colour of despair.” The limited edition meal is available in China until November 3 and is the latest in a series of hamburgers made with buns dyed black, red and even pink. Mailonline
