This document provides a recipe for a Spanish omelette. It lists the ingredients as potatoes, onions, eggs, oil, and salt. It describes how to make the omelette by peeling and slicing the potatoes, chopping the onions, frying the potatoes and onions in oil, beating the eggs, mixing the potatoes, onions and eggs with salt, pouring the mixture into a pan with oil to fry both sides. The cooking time is 45 minutes at a soft temperature.