Culinary Explorer

A cooking platform built around craft, culture, and the stories behind what we eat.

Discover Culinary Explorer
Tortilla de Patatas

Tortilla de Patatas

Created by

Tortilla de patatas belongs to every region of Spain: potatoes softened slowly in olive oil, folded through egg, and turned in one committed flip for a golden outside and tender centre.

Breakfast & Brunch
Spanish
Comfort Food
Weeknight
Budget Friendly
15 min
Active Time
35 min cook1 hr 5 min total
Yield1 thick 22cm tortilla, 6 servings

Tortilla de patatas has no single regional surname. Navarra gives us one of its earliest written records, but every region of Spain has taken the dish into its home kitchens. What makes it tortilla is the thick, round marriage of potato and egg, browned gently on both sides and tender within, not crisp potatoes with an omelette poured over them.

The potatoes decide whether it works. Slice them about 3mm thick and cook them slowly in plenty of olive oil until they bend, crush easily, and taste almost sweet. You're poaching, not crisping. That soft potato absorbs the beaten egg and gives the tortilla its close, creamy middle. Drain it well, salt it away from the hot oil, and let it sit in the egg for ten minutes before it returns to the pan.

If you can't find the Monalisa or Kennebec potatoes common in Spanish kitchens, use Yukon Gold or another yellow all-purpose potato. It will be a little firmer, but it holds together well and absorbs the egg properly. Use fresh eggs and ordinary good olive oil. No hace falta haber pisado España, you don't need to have set foot in Spain.

Then comes the flip. Use a flat plate wider than the pan, cover the pan completely, and turn it in one clean movement. Hesitation makes more trouble than speed. My Margin says only this: dry plate, hot pan, commit. Siempre sale, si lo sigues, it turns out if you follow it.

Tortilla de patatas is claimed by no single region, though one of its earliest clear written descriptions appears in an anonymous Navarrese petition describing poor households stretching a few eggs with potatoes. The often repeated tale that the Basque general Tomás de Zumalacárregui invented it during the Carlist Wars is a legend, not a settled origin. Its enduring argument is la cebolla, con cebolla or sin cebolla, with onion or without, and both versions have long belonged to Spanish home kitchens.

The technique, the tradition, and the story behind every dish.

Discover Culinary Explorer

Ingredients

waxy or all-purpose potatoes

Quantity

700g peeled weight

cut into irregular 3mm slices

yellow onion (optional)

Quantity

180g

halved and thinly sliced

large eggs

Quantity

7, about 350g without shells

extra virgin olive oil

Quantity

500ml

for poaching and setting the tortilla

fine sea salt

Quantity

10g

divided

Equipment Needed

  • Frying pan, 26cm, for poaching the potatoes
  • Non-stick or well-seasoned frying pan, 22cm, for setting the tortilla
  • Flat plate at least 24cm wide, for flipping
  • Heatproof bowl and fine sieve
  • Slotted spoon
  • Flexible spatula

Instructions

  1. 1

    Slice the potatoes

    Cut the peeled potatoes into irregular slices about 3mm thick. Keep them close in size so they soften together, but don't fuss over perfect rounds. Halve the onion and slice it thinly if you're making the con cebolla version.

    Pésalo, no lo adivines, weigh it, don't guess. Seven hundred grams of peeled potato with seven large eggs gives a thick tortilla that holds together without becoming dry.
  2. 2

    Poach them slowly

    Pour the olive oil into a 26cm frying pan and warm it over medium-low heat. Add the potatoes carefully, then the onion. The oil should bubble softly around them, never spit fiercely or smoke. Cook for 22 to 28 minutes, turning the mixture gently every few minutes, until the potato slices bend without breaking and crush easily against the side of the pan. Keep them pale. Brown, crisp edges belong to fried potatoes, not inside this tortilla.

  3. 3

    Drain and season

    Set a sieve over a heatproof bowl. Lift in the potatoes and onion with a slotted spoon, then leave them to drain for 5 minutes. Sprinkle the warm mixture with 7g of the salt after it leaves the oil. Seasoning it here gives you control and keeps salt away from the hot oil, where moisture makes it spit. Let the strained oil cool and save it.

  4. 4

    Rest in the egg

    Crack the eggs into a large bowl, add the remaining 3g salt, and beat only until the whites and yolks come together. Fold in the drained potatoes and onion without mashing them. Rest the mixture for 10 minutes. The warm potato drinks in a little egg during this pause, which helps the centre set evenly instead of separating into dry egg and loose slices.

  5. 5

    Set the first side

    Film a clean 22cm non-stick or well-seasoned frying pan with 15ml of the reserved oil. Heat it over medium heat until the oil moves freely across the surface, but don't let it smoke. Pour in the mixture and spread it level. Cook for 30 seconds, lower the heat to medium-low, then tuck the edges inward with a flexible spatula. Continue for 3 to 4 minutes, until the outside is set and golden underneath while the middle still moves when you shake the pan.

  6. 6

    Commit to the flip

    Loosen the edge with the spatula. Cover the pan with a flat plate at least 2cm wider than its rim. Hold the plate firmly against the pan with a dry hand or folded cloth, then turn everything over in one quick, committed movement. Set the pan down, add another teaspoon of reserved oil if it looks dry, and slide the tortilla back in with the uncooked side underneath. Shape the edge into a neat round.

  7. 7

    Finish and rest

    Cook the second side for 2 minutes for a softly set centre or 3 to 4 minutes for a firm one. Slide the tortilla onto a clean plate and rest it for 5 to 10 minutes before cutting six wedges. The egg finishes settling during the rest, while the potato stays tender. Serve warm or at room temperature, with nothing scattered over it. The tortilla is already complete.

Chef Tips

  • Monalisa and Kennebec are good potatoes for tortilla. Far from Spain, Yukon Gold or another yellow all-purpose potato is the sensible substitute. It makes a slightly firmer centre but won't collapse during the flip.
  • Onion is a proper choice, not a compulsory one. With it, the tortilla is sweeter and a little softer. Without it, the potato and olive oil taste more plainly. Omit it without replacing it and keep everything else the same.
  • Use a 22cm pan for this quantity. A 24cm pan gives a thinner tortilla and shortens each side by about one minute; a larger pan spreads the mixture too far and leaves it dry.
  • Cool the poaching oil, strain it through a fine sieve, and keep it covered in the refrigerator for up to one week. Use it for another tortilla, fried eggs, or a sofrito, the slow onion base of so many Spanish dishes.
  • For a soft centre, use fresh pasteurized eggs. If serving pregnant people, young children, older adults, or anyone with a weakened immune system, cook the centre to 71°C. It will be firmer, but it will still be a proper tortilla.
  • Refrigerate leftovers within two hours and eat them within two days. Let a chilled wedge lose its refrigerator cold before serving, or warm it briefly in a covered pan over low heat.

Advance Preparation

  • The potatoes and onion can be poached and drained up to 24 hours ahead. Cool them promptly, cover, and refrigerate; let them stand out for 20 minutes before mixing with the eggs.
  • Don't combine the potato and raw egg far in advance. The 10-minute rest in the recipe is enough and keeps the mixture from becoming watery.
  • The finished tortilla can be made several hours before serving. Keep it at room temperature for no more than two hours; for longer storage, cover and refrigerate, then take it out 20 to 30 minutes before eating.

Frequently Asked Questions

Nutrition Information

1 serving (about 180g)

Calories
320 calories
Total Fat
21 g
Saturated Fat
4 g
Trans Fat
0 g
Unsaturated Fat
16 g
Cholesterol
215 mg
Sodium
745 mg
Total Carbohydrates
24 g
Dietary Fiber
3 g
Sugars
2 g
Protein
10 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

Where cooking meets culture.

Culinary guides, cultural storytelling, and the editorial depth that makes cooking meaningful.

Discover Culinary Explorer

More from Huevos, Tortillas & Meatless Mains

Browse the full collection