Empanadas are an ubiquitous food in Bolivia. They vary from the very simple, baked bread with a simple cheese filling, to the complicated, bread pastry with chicken or meat along with raisins, olives, hard-boiled egg, perhaps some vegetables, and a salsa. Some are spicy, while others, simple cheese-filled ones, border on the sweet. Two basic methods of cooking them exist as well. They can be fried in oil or baked in an oven.