These make a great breakfast. They are pretty hearty! Muffins are a popular bakery item in South America, though they're not exactly a traditional Latin food. These passion fruit muffins are a hit in both the North and the South due to their tart passion fruit flavor and the sweet pineapple folded into the batter. They are topped with a crumble made from Brazil nuts, oats, and brown sugar, and drizzled with a passion fruit glaze.