Pastéis de nata or
Pastéis de Belém are one of the most popular Portuguese
sweets specialties with Conventual inspiration.
Pastéis de nata were created before the 18th
century by Catholic monks at Mosteiro dos Jerónimos, in
Lisbon. At the time, convents and monasteries used large quantities of
egg-whites for starching clothes. It was quite common for monasteries
and convents to use the leftover egg yolks to make cakes and pastries,
resulting in the proliferation of sweet pastry recipes throughout the
country.