These little beauties are called pastel de nata. (They are Pastéis de Nata, if you have more than one).
Even I've fallen under their spell, even though they are not gluten free. Thank goodness for Gluten Ease to help keep my tummy happy when it encounters gluten.
Pastéis de Nata born in the 18th century at Jerónimos Monastery in the Belém suburb of Lisbon. At the time, monasteries and convents used huge quantities of egg-whites to starch their uniforms.
Instead of letting the egg yolks go to waste, they began popping the egg cream into a crispy pastry cup. In fact, this pastry was so good, they realized they could sell them to make some money.
Overall, I think this class is an amazing way to get a hands-on, authentic Portuguese experience in Lisbon. It was really fun being able to actually make them ourselves.