This makes a fairly small omelette for 2 or 3 people.
1 medium-sized onion, finely chopped
3 large potatoes, peeled
salt and pepper
Cut each potato lengthways into quarters. Thinly slice the potatoes crossways. Soak in water to get rid of the excess starch and then drain.
Heat some olive oil in a frying pan and add the potatoes. Mix well so that they are thoroughly coated in the oil and begin frying on a high heat. Fry for 10-15 minutes, turning every 5 or so minutes. After you’ve turned the potatoes, turn the heat up for a minute or so and then cover and turn the heat down for another couple of minutes so that the potatoes get a bit of colour and cook in the steam at the same time.
After about 5 minutes, sprinkle over the onions and fry with the potatoes.
Meanwhile, crack the eggs into a bowl and beat. Season with salt and pepper.
When the potatoes are cooked, leave to cool down before combining with the egg.
Heat some oil in the frying pan and pour in the egg/potato mixture when the oil is hot. Set the timer for 1 minute and cook on a high heat. Turn down the heat, cover and cook for 2 minutes. Flip the tortilla. Turn the heat up and cook again for 1 minute on high before covering and turning down the heat for 2 minutes. Check the tortilla is cooked in the middle and serve.
It’s nice to make some garlic mayonnaise to serve with it. For a recipe and video, see this post.