Tortilla de patata
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How to Make the Perfect Tortilla Julitos Style
A creamy Spanish tortilla de patatas made with free-range eggs, Agria potatoes, caramelized onion, mild olive oil, and one extra egg yolk for that silky, unforgettable Julitos texture.
Introduction
Spanish omelette, or tortilla de patatas, is one of the simplest dishes in terms of ingredients. At its core, it only needs eggs, potatoes, olive oil, and, if you like, onion. Yet, despite its simplicity, there are as many ways to prepare it as there are cooks making it.
Some people love it well done, others prefer it runny. Some make it thin, while others go for a thick, generous version. And then there is the great debate: onion or no onion? You can add chorizo, tuna, cheese, or almost anything you like, but this recipe focuses on the classic version — the queen of all tortillas.
Ingredients
6 free-range eggs
Use good-quality eggs. They are the base of the tortilla and define much of its flavor and final texture.
1 extra egg yolk
This is the Julitos touch: one extra yolk adds richness, color, and extra creaminess to the final mixture.
800 g potatoes
We recommend using the Agria variety. It gives a beautiful texture and works very well for a creamy Spanish tortilla.
1/2 onion, finely chopped
Chop the onion in brunoise, meaning very small, even pieces. It will be cooked slowly until sweet and jam-like.
6 g salt
About one heaping teaspoon, or to taste. Seasoning both the potatoes and the egg mixture helps build flavor.
500 ml mild olive oil
Use a mild olive oil, ideally around 0.4 acidity. It cooks the potatoes gently without overpowering the tortilla.
Step by Step Guide
Prepare the potatoes
Peel the potatoes and cut them into slices about the size of a one-euro coin. The cut does not need to be perfectly uniform. In fact, for the best Julitos-style texture, cut them slightly irregularly, mixing clean straight cuts with a small snap at the end.
This irregular cut helps some pieces soften more deeply while others keep a little structure, creating a more interesting and creamy tortilla.
Cook the potatoes
Heat the mild olive oil in a pan over medium-high heat, around 7 out of 10. When the oil is warm, add the potatoes.
- The potatoes do not need to be fully submerged in oil.
- As they release moisture, they will shrink and soften.
- Stir occasionally to prevent sticking.
- Do not worry if some potatoes break apart — that is part of the magic.
- Add a pinch of salt while they cook to enhance their flavor.
Caramelize the onion
In a separate pan, add a drizzle of olive oil and the finely chopped onion. Cook slowly over low heat, stirring occasionally.
If the onion starts to burn or dry out, add small splashes of water to keep it hydrated. The goal is not crispy onion, but a soft, golden, almost jam-like onion. This process takes about 30 minutes.
Prepare the egg mixture
Crack the 6 free-range eggs into a large bowl. Lightly beat them with a spatula instead of whisking aggressively. The goal is to combine the eggs without creating too many air bubbles.
Add salt to the eggs and mix well. This gives the tortilla a balanced flavor from the inside out.
Combine everything
Once the potatoes are slightly golden and the onions are perfectly caramelized, transfer both to the bowl with the beaten eggs.
- Add one spoonful of the potato-cooking oil.
- Add the extra egg yolk for extra creaminess.
- Gently mix everything together into a silky, cohesive batter.
- Taste the mixture and adjust the salt if needed.
Preheat the pan
Use a clean, non-stick pan. Add a little oil and heat it well before adding the tortilla mixture.
Also grease the plate or lid that you will use to flip the tortilla. This small detail helps the tortilla slide smoothly and makes the turn cleaner and safer.
Cook and flip
Heat the pan over high heat, around 9 out of 10. Pour in the potato, onion, and egg mixture.
After just a few seconds, flip the tortilla onto the greased plate and return it to the pan. This is the most technical part of the recipe, and it may take practice to master.
Use a spatula to shape the edges and create the iconic round tortilla form. The goal is a golden outside with a creamy, barely set center.
The final touch
Once shaped and lightly cooked, slide the tortilla onto a plate and let it rest briefly before serving. The final result should be tender, glossy, creamy, and full of flavor.
And there you have it — the Julitos-style Spanish omelette.
Julitos Technique Notes
Texture is everything. The eggs should be creamy and not fully set, but they should never feel raw. The perfect point is soft, delicate, and silky.
Use quality ingredients. Because tortilla is such a simple dish, every ingredient matters: the eggs, the potato variety, the olive oil, and the salt.
Practice the flip. The turn is the technical part of the recipe. Greasing the plate or lid makes the movement easier and helps keep the tortilla intact.
Enjoy Your Tortilla
We hope you enjoy making it, and don’t forget to share your results with us. And if, for any reason, you don’t feel like cooking, remember — we’re always here to make it for you.
