Classic Spanish Omelette with Onion
The most popular version of Spanish tortilla: potatoes, eggs, olive oil and slowly cooked onion for sweetness and extra moisture.

Pasos de Elaboración
Prepare potatoes and onion
Slice the potatoes thinly and cut the onion into strips.
Slow-cook the mixture
Cook potatoes and onion together in olive oil until tender and soft.
Combine with eggs
Drain the mixture and combine with beaten salted eggs.
Cook
Cook over medium heat while keeping the center moist.
Key Ingredients
Fresh Egg
The emulsifying nexus. Free-range eggs ensure rich golden color and creamy emulsion.Extra Virgin Olive Oil
Thermal transmission medium. EVOO infuses fruity aromas and clean frying properties.Onion
Center of Spain's culinary debate. Poached slowly, it adds natural sweetness and rich texture.Potato
The structural base of the Spanish omelette. Varieties like Monalisa or Kennebec yield the best confit texture.Fine Sea Salt
Essential mineral to season potatoes and enhance egg matrix flavor.Related Variations
Spanish Omelette with Tuna
A classic Mediterranean variation adding quality tuna flakes to the potato and egg mixture.
Basque Cider House Salt Cod Tortilla
The iconic Basque cider house classic: desalted flaked cod, poached green peppers, caramelized onions, and juicy eggs.
Runny Betanzos-Style Spanish Omelette
The iconic Galician Betanzos tortilla: egg-forward, with tender potatoes and an almost liquid creamy center.
Riojan Spicy Chorizo Spanish Omelette
A vibrant country style tortilla: potatoes, eggs, sautéed Riojan chorizo, and a touch of garlic and mild chili.
Classic Spanish Omelette Without Onion
The fundamental Spanish omelette recipe: potato, egg, olive oil, and salt. The perfect balance between tradition and technique.
Deconstructed Spanish Omelette (El Bulli 1998 Tribute)
Ferran Adrià's iconic 1998 creation served in a glass: potato foam, slow caramelized onion marmalade, and warm emulsified egg yolk.
Express Potato Chip Spanish Omelette
A revolutionary quick version of Spanish tortilla using potato chips instead of fresh potatoes.
Classic Spanish Omelette jamon
The essence of Spanish ham: pork, salt, time, and patience. The perfect balance between tradition and technique.
Paisana Spanish Omelette
A traditional variation of Spanish tortilla with potatoes, onion and vegetables, with a rustic and flavorful profile.
Spanish Omelette with Blue Cheese
A flavorful gourmet variation where creamy blue cheese melts right inside the juicy potato omelette.
Stuffed Ham & Cheese Spanish Omelette
The iconic Madrid bar favorite: a thick, tender tortilla sliced open and stuffed with melted cheese and cured Iberian ham.
Wild Mushroom & Tender Garlic Spanish Omelette
Autumn forest flavors: wild boletus mushrooms sautéed with tender garlic shoots, soft confited potatoes, and custardy eggs.
Balearic Sobrasada & Honey Spanish Omelette
A stunning Balearic contrast of flavors: poached potatoes, melted black pork sobrasada, and a drizzle of pure honey.
Truffled Spanish Omelette with Aged Cheese
A gourmet elevation of the classic: slow-confited potatoes, free-range eggs, black truffle cream, and melting aged cheese.
Vegan & Gluten-Free Spanish Omelette
Inclusive vegan recipe created by Cris (Delantal de Alces): replaces eggs with chickpea flour, water, and tapioca starch to achieve traditional juiciness and a golden crust without animal products.