1. Eggs 2. Onion 3. Olive Oil 4. Potatoes 5. Salt & Pepper
Cook potato and onion slices slowly. Stir 2 or 3 times, but otherwise just let them cook on low for almost half an hour.
Carefully spoon the cooked potato and onion into the eggs. Let it stand for a while to let the flavors meld together.
Heat a little more oil in a smaller pan & pour the mixture in. Turn the heat down to low. Let the tortilla cook until around two thirds cooked through.
Flip your omelette! Use a plate to help!
Let it cook for a little longer, then slice it out onto a serving board.