Spanish Tortilla Española (Potato and Onion Omelette)

About This Recipe

Tortilla española is one of the most fiercely debated dishes in Spain — onion or no onion, runny center or fully set — but the fundamentals are universal: thinly sliced potatoes and onions cooked slowly in olive oil until meltingly soft, then bound with beaten eggs and set in a hot pan into a thick, golden cake. It's tapas-bar food and home-kitchen staple in equal measure, eaten warm, at room temperature, or even cold the next day.\n\nThe technique that makes or breaks a tortilla is cooking the potatoes low and slow in a generous amount of olive oil — closer to confiting than frying — until they're fully tender and almost falling apart, not crisp or browned. That gentle cooking is what gives the finished tortilla its soft, custardy interior once the eggs are added.\n\nThe flip is the famous nerve-wracking moment: a plate placed over the pan, then a confident, quick inversion. It gets easier with practice, and even a slightly messy flip still tastes exactly the same once it's back in the pan finishing the second side.

Ingredients

Serves 4

• 1 cupolive oil
• 700 gpotatoes(peeled, thinly sliced)
• 1 largeonion(thinly sliced)
• 6large eggs
• 1 tspfine sea salt(plus more to taste)

Instructions

1. 1

   Confit the potatoes and onion

   Heat olive oil in a deep, medium skillet over medium-low heat. Add potatoes and onion in an even layer, season with a pinch of salt, and cook 25-30 minutes, stirring gently every few minutes, until fully tender but not browned.

2. 2

   Drain

   Scoop the potatoes and onion out with a slotted spoon into a large bowl, reserving the oil. Let cool 5 minutes.

3. 3

   Combine with eggs

   Beat eggs with 1 tsp salt in a separate bowl. Pour the eggs over the potatoes and onion and gently fold together, lightly crushing some of the potato slices as you mix.

4. 4

   Cook the tortilla

   Heat 2 tbsp of the reserved oil in a clean 9-10 inch nonstick skillet over medium heat. Pour in the egg-potato mixture, spreading evenly, and cook 4-5 minutes until the edges set and the bottom is golden.

   Shake the pan gently partway through — if the tortilla slides freely, it's ready to flip; if it's stuck, give it another minute.

5. 5

   Flip

   Place a large plate over the pan, hold it firmly, and invert the tortilla onto the plate in one confident motion. Slide it back into the pan to cook the second side.

6. 6

   Finish

   Cook 3-4 more minutes until the second side is golden and the center is set but still slightly soft. Slide onto a plate and let rest 5 minutes before slicing.

Variations

• •

  Skip the onion for a 'tortilla sin cebolla' if you're in the no-onion camp — it's just as traditional in many regions.

• •

  Add cooked chorizo or jamón to the egg mixture for a heartier, meat-forward tortilla.

• •

  Serve in small squares as a tapas appetizer with toothpicks instead of as a full breakfast slice.

Storage

Refrigerate covered for up to 3 days. Serve cold or at room temperature — Spaniards rarely reheat tortilla, since it changes the texture, though a brief warm-up in a low oven works if you prefer it warm.

Frequently Asked Questions