A malasada (or malassada, from Portuguese “mal-assada” is made of egg-sized balls of yeast dough that are deep-fried in oil and coated with granulated sugar.
They were first made by inhabitants of the Madeira Islands. Traditional malasadas contain neither holes nor fillings, but some varieties of malasadas are filled with flavored cream or other fillings.
Malasadas are eaten especially on Mardi Gras – the day before Ash Wednesday.
In Madeira, malasadas are eaten mainly on “Fat Tuesday” in English; Mardi Gras in French.
This tradition was taken to Hawaii, where is known as “Malasada Day”, which dates back to the days of the sugarcane plantations of the 19th century. -Wiki