Tortilla Española (Spanish Potato Omelet)
A thick, custardy omelet of slow-cooked potatoes and eggs, golden on the outside and tender within. It is the heart of Spanish tapas culture, served warm or at room temperature.
A little context
Dating back to the early 19th century, this dish emerged as a humble meal for the working class using cheap ingredients. While the inclusion of onion remains a passionate debate across regions, the core technique of slow-frying potatoes in olive oil is universal. It is eaten year-round as a tapa, a light lunch, or a substantial dinner.
Method
- 01
Prepare the vegetables
Peel the potatoes and slice them into 3 mm rounds. Do not wash them. Slice the onion into thin strips.
- 02
Heat the oil
Pour the olive oil into the skillet and heat over medium-low heat. The oil should shimmer but not smoke.
- 03
Confit the potatoes
Add potatoes and onion to the oil. Cook for 20-25 minutes, stirring occasionally, until potatoes are tender but not browned.
- 04
Drain the mixture
Using a slotted spoon, transfer the potatoes and onion to a colander. Reserve the oil for another use. Let cool slightly.
- 05
Beat the eggs
In a large bowl, whisk the eggs with half of the salt until just combined. Do not overbeat.
- 06
Combine and rest
Pour the warm potato mixture into the eggs. Stir gently and let sit for 10 minutes so the potatoes absorb the egg.
- 07
Cook the first side
Heat 1 tablespoon of reserved oil in the skillet over medium heat. Pour in the egg mixture. Cook for 5 minutes until edges set.
- 08
Flip the tortilla
Place the large plate over the skillet. Invert confidently to release the tortilla onto the plate. Slide it back into the skillet.
- 09
Finish the second side
Cook for another 3-5 minutes until the center is set but still slightly moist. Use a spatula to check the center.
- 10
Rest and serve
Slide onto a cutting board. Let rest for 5 minutes before slicing. Serve warm or at room temperature.
Pro tips
- ✦Resting the potato-egg mixture before cooking ensures a creamy interior.
- ✦Use a plate larger than your skillet for a successful flip.
- ✦Don't rush the frying; soft potatoes yield a better texture.
- ✦The center should be slightly runny for authentic texture.
Substitutions
- yellow onion → green onions (add at the end for fresh flavor)
- Yukon Gold potatoes → Russet potatoes (starchier texture, handle gently)
Storage
Refrigerate covered for up to 3 days. Do not freeze as texture changes.
What to serve with it
- Green salad with vinaigrette
- Dry white wine or Txakoli
- Iced beer
FAQ
Do I have to use onion?+
No, traditionalists argue against it, but most modern recipes include it for sweetness.
How do I know if it is done?+
The edges should be firm, but the center should jiggle slightly when shaken.
