Must try in Spain

Tortilla Española.

Name: Tortilla Española (Spanish Potato Omelette)
Prep time: 15 min
Cook time: 35 min
Total time: 1 h
Yield: 4 servings
Cuisine: Spain
Ingredients: 600 g starchy or all-purpose potatoes, peeled and sliced 3 mm thick; 1 medium yellow onion, halved and thinly sliced; 6 large eggs; 250 ml olive oil, for poaching; 1½ tsp fine salt

Spanish Potato Omelette

Tortilla española · say it: tor-TEE-ya es-pah-NYOH-la

The tortilla española is a thick, golden cake of eggs, potatoes and onion, and it may be the most widely eaten dish in Spain — on bar counters as a tapa, between bread as a bocadillo, at every family gathering. It tastes of exactly three things done right: potatoes gone silky from a slow poach in olive oil, onion cooked to sweetness, and eggs left just creamy in the middle. There is no cheese, no herbs, no shortcuts hiding in it, which is why technique decides everything. This version walks the two make-or-break moments — letting the potatoes soak in the egg before cooking, and the plate-assisted flip — slowly enough that a first attempt comes out looking like a tenth.

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Spanish Potato Omelette

Gate: Spain
Prep: 15 min
Cook: 35 min
Total time: 1 hr incl. 10 min rest
Serves: 4
Status: Medium
Nutrition / serving · estimated: Calories 380 kcal; Protein 13 g; Carbs 28 g; Fat 24 g; Fiber 3 g

Why this recipe works.

Potatoes are poached gently in olive oil, not fried hard — the difference between silky and greasy.
The 10-minute egg soak before cooking is the step most recipes skip and the one that makes the texture.
The flip is broken into exact, low-risk moves with a plate — no wrist heroics required.
Doneness is explained as a choice: pull it early for jugosa, hold it longer for cuajada.

Ingredients.

5 items

Servings

600 g starchy or all-purpose potatoes, peeled and sliced 3 mm thick
1 medium yellow onion, halved and thinly sliced
6 large eggs
250 ml olive oil, for poachingmost is drained off and can be reused
1½ tsp fine salt

Equipment

20–24 cm nonstick frying pan
Flat plate or pan lid wider than the pan
Large mixing bowl
Colander or sieve

Instructions.

Poach the potatoes and onion
Warm the olive oil in the pan over medium-low heat and add 600 g of sliced potatoes with the onion and a pinch of salt. Cook gently, turning now and then, until a slice breaks apart under light pressure from a spoon and the onion is translucent and sweet — the oil should murmur, never crackle.
Tip If the potato edges start browning, the heat is too high. Silky and pale is the goal.
Drain thoroughly
Tip everything into a colander set over a bowl and let the oil drain for a few minutes, tossing once. The potatoes should look glossy, not wet — pooled oil at this stage makes a greasy tortilla.
Soak in the egg
Beat 6 eggs with the salt in a large bowl, fold in the warm drained potatoes and onion, and let the mixture rest for 10 minutes. It is ready when the potatoes have drunk in some egg and the whole bowl moves as one thick, custardy mass rather than slices in liquid.
Tip This rest is the secret to the melting texture of a great bar tortilla — do not rush it.
Set the first side
Heat 1 tablespoon of the reserved oil in the wiped-out pan over medium heat and pour in the mixture, shaking the pan to level it. Cook, running a spatula around the edge, until the sides are set and golden and only the center jiggles when you shake the pan — about 3 minutes for a juicy tortilla, 5 for fully set.
The flip
Slide the pan off the heat, press a flat plate firmly over it, and invert both together in one confident motion so the tortilla lands cooked-side up on the plate. Slide it straight back into the pan and tuck the edges under with the spatula to shape the classic rounded rim.
Tip Do it over the counter, commit fully, and keep your gripping hand flat on the plate. Hesitation is the only real danger.
Finish the second side
Cook the second side until it is golden underneath and the tortilla feels springy but still yielding in the center when pressed — about 2–3 minutes for jugosa, 4–5 for cuajada. It should slide freely when you shake the pan.
Rest and serve
Slide the tortilla onto a serving plate and rest it at least 10 minutes — the interior finishes setting and the flavors settle. Serve warm or at room temperature, cut into wedges or into small squares with toothpicks, tapas style.

Tips from our kitchen.

Use a starchy or all-purpose potato and slice it thin — about 3 mm. Thick chunks poach unevenly and break the tortilla's tender, layered texture.
The oil should barely bubble around the potatoes. If they brown, the heat is too high; you are poaching, not frying, and browned edges stay chewy in the finished tortilla.
Do not skip the soak: letting the drained potatoes sit in the beaten egg for 10 minutes is what turns separate ingredients into one custardy mass.
Save the strained poaching oil in a jar — it is now potato-and-onion infused olive oil, excellent for frying eggs or starting a sofrito.
Size matters for the flip: a 20–24 cm nonstick pan gives a thick tortilla that holds together. In a wide pan the same mixture spreads thin and dries out.
Serve it warm or at room temperature, never hot from the pan — the flavor and texture both settle and improve as it rests.

Substitutions.

Olive oil (in quantity) → A neutral oil like sunflower for the poach, plus a little olive oil in the egg mix: Plenty of Spanish home cooks do exactly this to save money. You lose some flavor, not the dish.
Onion → Simply leave it out: That is the legitimate "sin cebolla" purist tortilla, not a compromise. Add a pinch more salt.
Raw potatoes poached in oil → Thinly sliced boiled potatoes, briefly warmed in a few tablespoons of oil: A weeknight shortcut. The texture is decent, but the slow oil poach is what the classic tastes like.

Variations.

Tortilla jugosa: The runny-centered style fashionable in Spain's best tortilla bars: cook each side only until the surface is set and the middle still visibly creamy, and serve within minutes.
Tortilla de patatas con chorizo: Slices of soft chorizo added to the egg mixture — a common variation that stains the tortilla brick-red with paprika fat.
Bocadillo de tortilla: A thick wedge tucked into a crusty baguette, nothing else added — a beloved Spanish breakfast, road-trip and school-lunch classic.

Storage & reheating.

Tortilla keeps 3 days covered in the fridge and is genuinely good cold or at room temperature — many Spaniards prefer it the next day. Reheat wedges gently in a low pan or a short burst in the microwave; a hot oven dries it out. Freezing is not recommended: the potatoes turn watery and mealy on thawing. A jugosa (runny-centered) tortilla should be eaten the day it is made.

Serve with

A simple tomato-dressed salad, crusty bread, olives and a cold beer or glass of Rioja — tapas-bar style.

The story behind Tortilla Española.

The tortilla de patatas is young by the standards of famous dishes — potatoes only became a staple in Spain in the eighteenth century — and its exact origin is disputed. Navarre and Extremadura both claim it, and a popular legend credits the Carlist general Tomás de Zumalacárregui with improvising it as cheap field rations in the 1830s; historians treat that story as just that, a legend. What is certain is that by the late nineteenth century it had become the default dish of the Spanish home kitchen, and it has never given up the post. It is the thing Spaniards cook when there is nothing in the house, the first dish many learn from a grandmother, the staple of picnics, road trips and late-night fridge raids.

It is also the subject of two entirely real national arguments. The first is onion. "Con cebolla o sin cebolla" divides bars, families and newspaper opinion pages: the onion camp argues for sweetness and juiciness, the purists insist a true tortilla is potato and egg alone. Polls are run about it; politicians get asked their position. This recipe takes the majority view — with onion — and the purist version is one omitted ingredient away.

The second argument is doneness. A tortilla can be jugosa — juicy, with a soft, almost runny center — or cuajada, fully set through. The modern tapa-bar fashion, led by celebrated tortillas in Madrid and the Basque Country, leans decisively jugosa, while many home cooks still set theirs firm the way their mothers did. Neither is wrong; the recipe below shows you how to hit either, on purpose, by choosing when to pull the pan off the heat.

Questions, answered.

Should a Spanish tortilla have onion or not?

This is a real and famously heated debate in Spain — "con cebolla o sin cebolla" — with polls, hashtags and family feuds behind it. The onion version is juicier and slightly sweet; the potato-only version is the purist's choice. Both are authentic and centuries of home cooks have made each. Cook whichever you prefer and defend it loudly.

Should the center be runny or fully set?

Both are correct Spanish styles. "Jugosa" means a soft, creamy, slightly runny center and is the fashion in top tapas bars; "cuajada" means cooked through, the traditional home style that also keeps and travels better. Control it by timing: about 3 minutes per side gives jugosa, 5–6 per side gives cuajada. Use fresh eggs if you go runny.

How do I flip the tortilla without disaster?

Use a flat plate or lid slightly wider than the pan. Slide the pan off the heat, press the plate firmly over it, grip both together and invert in one confident motion over the sink or counter — hesitation, not gravity, causes accidents. Then slide the tortilla back into the pan, cooked side up, and tuck the edges under with a spatula.

Isn't a whole cup of olive oil too much?

Almost none of it stays in the dish. The oil is a poaching medium that cooks the potatoes gently until silky, and it gets drained off thoroughly before the eggs go in. Strain it into a jar afterwards and reuse it for frying or sautéing — Spanish home cooks have always done this, so nothing is actually wasted.

Can I eat tortilla española cold?

Yes — it is one of the few egg dishes designed for it. Across Spain tortilla is served at room temperature on bar counters, packed for picnics, and eaten cold in sandwiches. The flavor arguably improves after a few hours' rest. Only the runny-centered jugosa style should be eaten fresh and warm, for both texture and food-safety reasons.

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