Bolo de Arroz is a popular Portuguese pastry that is often enjoyed for breakfast or as a snack. It is a small, muffin-like cake made with rice flour, sugar, eggs, and butter. The cakes have a slightly crispy exterior and a soft and fluffy interior. Bolo de Arroz is often flavored with lemon zest or vanilla extract. It is a simple yet delicious treat that pairs well with a cup of coffee or tea.