El Salvador’s national dish is so wildly popular, it has its own day of celebration. Pupusa is a thick griddle cake or flatbread that’s traditionally made with cornmeal or rice flour and stuffed with all kinds of delicious ingredients, from cheese to refried beans and chicharrón (fried pork belly). Crispy on the outside and soft and doughy on the inside, it's utterly moreish and readily available from street stalls, carts and restaurants all over El Salvador. You’ll usually find them served with curtido (a pickled cabbage slaw) and salsa to cut through the richness.