The beauty of this dish, is not only that it is texturally satisfying, but it can be served at any meal in the day as a side dish OR an entrée. We’ve experienced the Spanish tortillas lining the counters at tapa and pintxo bars all over Spain. They’re one of the most beloved and popular dishes in Spanish cuisine and are eaten at any time of day: breakfast, lunch, dinner, on school field trips, after beach excursions…. or just because you’re hungry…

For purists, a Spanish tortilla should only contain 4 ingredients: olive oil, potatoes, eggs, and salt. Personally, onion is a must but in this recipe zucchini is also added, which ends up melting into the potatoes creating a velvety dish. The trick to creamy tortilla is to use lots of olive oil—more than what you would ever think you need.
According to America’s Test Kitchen (ATK), it is about poaching the potatoes and zucchini in the oil and not really frying to a crisp. The potatoes and zucchini will absorb some of the oil, but a lot of it will get drained after they are cooked (leftover oil can be reused after straining so it doesn’t go to waste). Everything gets mixed with eggs and is given a quick scramble in the pan, then it’s flipped, using a plate, and finished with a quick stint in the pan on the second side.
In Spain, a true tortilla should have a soft and creamy interior and exterior that is light in color. It should not be cooked through or deeply caramelized on the outside, but of course, you can cook it a bit longer to your liking. Loved it! As melt-in-your-mouth tender as the ones they serve in Spain.
NOTES: It is best to wait a few minutes before cutting into it as it will set a bit more with carryover cooking. It is important to use a nonstick pan so the tortilla slides easily out of it.

Potato and Zucchini Spanish Tortilla
Ingredients
- 1 cup extra-virgin olive oil
- 1 small onion, chopped fine
- 1 lb. Yukon gold potatoes, peeled, halved lengthwise and sliced crosswise 1/8-inch thick
- 8 oz. zucchini, cut into 1/2-inch pieces
- 1 1/4 tsp. table salt, divided
- 5 large eggs










Directions
- Heat 1 cup extra-virgin olive oil in 10-inch nonstick skillet over medium heat until shimmering. Add 1 small finely chopped onion and cook until just softened but not browned, 3 to 5 minutes.
- Stir in 1 pound Yukon gold potatoes (peeled, halved lengthwise, and sliced crosswise into ⅛-inch-thick pieces), 8 ounces chopped zucchini, and ¾ teaspoon table salt. Compress vegetables to submerge in oil as much as possible (it’s OK if vegetables aren’t fully submerged; as they cook they will shrink and become submerged). Cook until potatoes and zucchini are very tender and lightly caramelized, 25 to 30 minutes, stirring occasionally (zucchini should be falling apart). Remove from heat.
- Whisk 5 large eggs and remaining ½ teaspoon table salt together in large bowl. Strain vegetable-oil mixture through fine-mesh strainer set over clean bowl. Transfer vegetables to bowl with eggs, stirring to combine, and set strained oil aside.
- Heat 1 tablespoon strained oil in now-empty skillet over medium heat until shimmering. Add egg-vegetable mixture and cook, stirring center to scramble eggs lightly, until edges are set, about 1 minute. Run rubber spatula along edges of pan, then shake skillet gently to loosen tortilla from skillet. Cook for additional 1 to 2 minutes until set but not browned.
- Remove skillet from heat. Run rubber spatula along edges of pan, then shake skillet gently to loosen tortilla from skillet. Place large flat plate over tortilla in skillet and, holding plate with 1 hand and skillet handle with your second hand, invert skillet to transfer tortilla to plate. Slide tortilla back into now-empty skillet, tucking edges of tortilla as needed around perimeter of skillet, and cook over medium-high heat until second side is just set, 1 to 2 minutes.
- Gently slide tortilla onto serving plate and let rest for 10 minutes. Serve warm or at room temperature, drizzling with extra strained oil if desired.
Recipe by Aran Goyoaga for America’s Test Kitchen’s Cooks Country











































