Wangjing Xiaoyao is a pig's kidney. Wangjing Xiaoyao is a street barbecue snack that originated in Wangjing, Beijing. Because of the pursuit of many media and stars, the huge exposure of major social media is well known to the majority of diners. Consumers choose and evaluate old shops that have been established for a long time, so that they can eat authentic Wangjing waist.

The appearance of Wangjing small waist just makes up for the two shortcomings of big waist. Wangjing small waist cuts the original whole kidney into small pieces, and then cuts the pig fat oil into pieces to wrap the waist, so that when baking, the smell of fat oil can just cover the original coquettish smell of the kidney. Coupled with a unique sauce, the finished product baked in this way is tender and golden lard, which is delicious in color and appetizing.