Goubuli stuffed buns at an outlet in Tianjin. The Chinese restaurant chain has finalized a deal with Australia's Retail Foods to manage the latter's coffee house brands in China. (Photo/China Daily)

2. Goubuli baozi

Baozi, or steamed buns with filling, is a popular staple food in North China.

Goubuli, a time-honored chain restaurant in Tianjin with a history of more than a hundred years, is the most famed brand of its kind.

Gaobuli's buns are known for their savory taste and exquisite ingredients, such as semi-leavened dough, and how they turn out, with exactly 18 creases on each bun.