Since the opening of Fábrica de Pastéis de Belém, the original recipe of the pastel de nata is kept in a secret room. The Fábrica de Pastéis de Belém is the most popular place to buy pastéis de nata; the shop is located just a short three-minute walk from the Jerónimos Monastery. The shop offers both takeout and sit-in services and sells over 20,000 pastéis de nata a day. Usually the tart is sprinkled with canela (cinnamon), and often accompanied with a bica (a strong espresso coffee).