Arancini are a popular Sicilian street food made of rice balls filled with various ingredients such as ragu, mozzarella, and peas. The rice is cooked with saffron, giving it a vibrant yellow color. The balls are then coated in breadcrumbs and deep-fried until crispy. Arancini are a delicious and satisfying snack, perfect for on-the-go eating in Sicilia.