Peel potatoes. Cut potatoes and onion into small cubes. Add salt (to taste) to potatoes and fry them until they are lightly crunchy. in olive oil. About the last 5 mins of cooking add the onion to the potatoes. When tender, transfer potatoes and onion to papertowels to drain. Beat the eggs with a pinch of salt. Lightly coat frying pan with olive oil. Add the eggs, potatoes and onions and cook over low heat, flipping omelette once to cook other side. Cooking is a creative process, and this recipe lends itself to your creativity! Add spices, herbs, meats, veggies and cheese to your taste. This is just the base to a Spanish omelette!