Rice flour
A variant of the pupusa in El Salvador is the "pupusa de arroz", originally hailing from the town of Olocuilta in the east of San Salvador. Rice flour is used to make the dough and they are usually stuffed with chopped pork, cheese, beans, zucchini, and other vegetables. Another regional variation, found in Alegría, is the "pupusa de banano", which calls for the addition of plantain bananas to the pupusa.