Bologna's nickname, La Grassa — the fat one — is older than the tortellino itself, and the city has spent seven centuries earning it. The kitchen tradition that a bologna cooking class with kids draws on is not folklore invented for visitors. It is codified. In 1972 the Accademia Italiana della Cucina deposited an official tagliatella recipe at the Bologna Chamber of Commerce, fixing the ribbon's cooked width at eight millimetres — one twelve-thousandth of the Asinelli tower's height. The ragù alla bolognese recipe was registered there in 1982, then revised in 2023: beef, pancetta, onion, carrot, celery, tomato paste, and time. No cream. No garlic. Tortellini received their own filing, with a filling of pork loin, prosciutto crudo, mortadella, Parmigiano Reggiano, egg, and nutmeg. That precision comes from geography. Emilia-Romagna sits on the alluvial plain of the Po, where soft wheat grows well and hard durum does not, which is why the region's pasta is made with egg rather than water. The sfoglina — the woman who rolls the sheet — was for generations a paid trade in Bologna, working with a mattarello nearly a metre long and no machine at all. The Quadrilatero market lanes behind Piazza Maggiore still supply the same ingredients: Parmigiano wheels aged 24 to 36 months, mortadella studded with pistachio, aceto balsamico tradizionale from Modena, forty kilometres west. Morning sessions in the city often begin with a walk through these stalls, which is why the practical guidance for the day runs from 09:00 to 17:00. What makes the discipline unusually suited to children is that it removes the knife and the flame from the centre of the work. A sheet of sfoglia is rolled by pressure and patience. It forgives. Bolognese grandmothers taught the gesture to six-year-olds long before family pasta-making tours existed as a commercial category, and the teaching method — hands over hands, no measuring cups — has survived intact into the workshops running today. The city itself reinforces the lesson. Bologna holds roughly 38 kilometres of porticoes, inscribed by UNESCO in 2021, and many of the kitchens used for these classes sit behind them, in ground-floor rooms of buildings four and five hundred years old. The University of Bologna, founded in 1088 and the oldest in continuous operation in Europe, kept the city young and hungry for a millennium. A bologna cooking class with kids is therefore less a novelty than an initiation into a working local grammar — one where the sheet, the fold, and the rest are the whole vocabulary.