It is the fourth most populated city in Mexico. After Independence, Puebla became an important cultural center. This city is famous for its ceramics and gastronomy. Some of the most representative meals of Mexico have their roots in Puebla, such as the mole (thick, cooked chilli sauce), chiles in walnut sauce, chalupas (small tortilla with a raised rim to contain a filling, and rompope (type of eggnog with cinnamon or vanilla). Puebla is one of the cities with universities of all kinds; therefore, there are a wide variety of cultural and recreational activities organized by students, for instance: theater, cinema and sports.