Spanish tortilla, also called tortilla española or tortilla de patatas, is a thick Spanish omelet made with potatoes and eggs, often with onion. This mild, sliceable oven-finished version is easy to portion, uses familiar ingredients, and gives children a safe way to help with mixing and serving.
Ingredients
- 1 lb (450 g) Yukon Gold or other yellow potatoes, peeled and sliced about ⅛ inch (3 mm) thick
- 1 small yellow onion, about 5 oz (140 g), thinly sliced; optional for a sweeter, more traditional flavor
- ⅓ cup (80 ml) olive oil, for gently cooking the potatoes and onion
- 6 large eggs, about 10½ oz (300 g) without shells
- ¾ tsp (4 g) fine salt, divided
- ⅛ tsp (0.3 g) ground black pepper, optional
- 1 tbsp (4 g) finely chopped fresh parsley, optional, for serving
Instructions
- Prepare the pan and vegetables. Heat the oven to 350°F (175°C). Use a 10-inch (25 cm) ovenproof nonstick skillet; check that its handle is safe for oven use. Peel the potatoes and cut them into evenly thin slices so they cook at the same pace. Slice the onion thinly, if using. A child can help measure the salt or parsley, but an adult should handle the knife and hot pan.
- Cook the potatoes and onion gently. Pour the olive oil into the skillet and warm it over medium-low heat. Add the potato slices and onion, if using, then sprinkle with about ½ tsp (3 g) of the salt. Stir carefully to coat the pieces. Cook for about 20 minutes, turning gently every few minutes, until the potatoes are tender when pierced with a fork but not browned or crisp. Lower the heat if the edges start to color quickly. The goal is soft potatoes, not fried chips.
- Drain the excess oil. Set a heatproof bowl beside the stove. With an adult holding the skillet, carefully transfer the potatoes and onion to a colander set over the bowl, or lift them out with a slotted spoon. Reserve the oil for another use, such as sautéing vegetables, and wipe excess oil from the skillet. Leave a thin coating in the pan so the tortilla releases more easily. The oil and skillet are hot, so keep children away from this step.
- Mix the eggs and potatoes. Crack the eggs into a large bowl and whisk with the remaining ¼ tsp (1 g) salt and the pepper, if using. Add the warm potato mixture and fold gently until the egg coats the slices. Let the mixture sit for 2 minutes while you make sure the oven is heated and the skillet is ready. This brief pause helps the potatoes settle into the egg, making the finished tortilla easier to slice.
- Start the tortilla on the stovetop. Return the skillet to medium-low heat. Pour in the egg and potato mixture and spread it into an even layer with a heatproof spatula. Cook for 2 minutes, gently nudging the sides inward once so uncooked egg can flow toward the edges. Do not stir it like scrambled eggs; keeping the layers intact is what gives tortilla its thick, sliceable shape.
- Finish baking and check the center. Transfer the ovenproof skillet to the oven and bake for about 15 minutes, until the top looks set and the center no longer sloshes when the pan is moved. Check the thickest part with a food thermometer: egg dishes should reach the USDA FSIS safe minimum internal temperature of 160°F (71°C). If it has not reached that temperature, return it to the oven for 2-minute intervals and check again. Use oven mitts, and remember that the skillet handle stays hot after it leaves the oven.
- Rest, slice, and serve. Place the skillet on a heatproof surface and let the tortilla rest for 5 minutes. Loosen the edges with a spatula, then cut it into wedges or small squares. Sprinkle with parsley if desired. Serve warm, or let it cool until just warm for younger diners; an adult should portion the pieces and check that each serving is a safe temperature to eat.
Tips
- Slice evenly. Aim for potato slices about ⅛ inch (3 mm) thick. Thick or uneven pieces may still be firm when the egg has set. A mandoline can make even slices, but it is sharp and should be used only by an adult with its guard in place.
- Keep the heat moderate. Olive oil should gently soften the potatoes rather than smoke or vigorously fry them. If the oil gets too hot, turn down the burner. Soft, pale potatoes give the tortilla its tender texture and are easier for children to chew.
- Choose onion to suit your table. Onion is common in many Spanish tortilla recipes, while some cooks leave it out. Omitting it is fine; the result will taste a little less sweet and aromatic. For a milder flavor, cook the onion fully with the potatoes rather than adding it raw.
- Make the recipe easier to manage. If your skillet is not ovenproof, cook the potatoes in a regular pan, then transfer the egg mixture to a lightly oiled 9-inch (23 cm) oven-safe baking dish. The tortilla may bake a few minutes longer in a deeper dish, so check the center temperature rather than relying only on the clock.
Serving Suggestions
Serve the tortilla in small wedges as a main dish for lunch or a light dinner, or cut it into bite-size squares for a Spanish-inspired snack plate. In Spain, tortilla is eaten in different settings and may be served warm, at room temperature, or as part of a larger spread. This family-friendly version pairs well with sliced tomatoes, cucumber sticks, steamed green beans, or a simple salad. Offer those sides separately so children can choose what they want to try.
For a more filling meal, add crusty bread or a small bowl of rice, and put fruit on the table for dessert. A mild tomato sauce can be served on the side for dipping, but it is not necessary. If serving a group, cut the tortilla into small pieces and provide forks or cocktail picks for older children. For toddlers and younger children, cut soft pieces to an age-appropriate size and supervise while they eat.
Variations
Make it plain: Leave out the onion and black pepper for a particularly simple flavor. The potato-and-egg base is still satisfying, and children can add a little parsley or sauce to their own portions if they like.
Add a little vegetable: Stir ½ cup (75 g) of finely diced red pepper into the potatoes during the last 5 minutes of cooking, or fold in ½ cup (75 g) of cooked peas with the eggs. Keep additions modest so the egg can hold the tortilla together. Any extra vegetables should be cooked and tender before they go into the egg mixture.
Use sweet potato: Replace up to half of the yellow potatoes with 8 oz (225 g) peeled sweet potato, sliced to the same thickness. It cooks similarly but brings a sweeter flavor and softer texture. Check it with a fork during cooking, since thin slices may become tender before thicker ones.
Try a stovetop finish: A traditional-style tortilla is often cooked on the stovetop and flipped to finish the other side. That takes practice and a plate larger than the skillet; this recipe uses the oven instead to avoid a hot-pan flip. If you already know the stovetop method, cook the tortilla over low heat until mostly set, invert it onto a plate, slide it back into the pan, and cook the second side until the egg reaches 160°F (71°C) in the center.
Storage and Reheating
Refrigerate leftover tortilla within 2 hours of cooking. Place cooled portions in a covered container and keep them refrigerated for 3 to 4 days. For best texture, store wedges in a single layer or separate them with parchment so they do not stick together. Do not leave the tortilla at room temperature for longer than 2 hours, or 1 hour if the room is above 90°F (32°C).
Reheat individual slices in the microwave in short bursts, turning once, until steaming hot throughout; leftovers should reach 165°F (74°C). You can also warm wedges in a covered skillet over low heat, checking the center with a thermometer. Avoid high heat, which can make the eggs rubbery before the middle is warm. The tortilla can be eaten cold from the refrigerator if you prefer, but promptly chill anything that will not be served.
To freeze, wrap individual fully cooled portions and freeze for up to 2 months for the best quality. Thaw in the refrigerator, then reheat to 165°F (74°C). The potatoes and eggs may be a little softer after freezing, so freshly made or refrigerated portions generally have the most appealing texture.
Frequently Asked Questions
Is Spanish tortilla the same as a Mexican tortilla?
No. Spanish tortilla in this recipe is a thick egg dish made with potatoes, sometimes onion. A Mexican tortilla is a thin, round flatbread made from corn or wheat and used for tacos, quesadillas, and other dishes. The shared name can be confusing, but the foods are different.
Can I make this tortilla ahead?
Yes. You can cook it earlier in the day, cool it, and refrigerate it promptly. Serve it chilled or let a portion sit out briefly while you prepare the rest of the meal; do not leave it unrefrigerated for more than 2 hours. If you prefer it warm, reheat leftovers until they reach 165°F (74°C).
Why is my tortilla watery or falling apart?
Potatoes can release moisture, and extra vegetables can add more. Drain the cooked potatoes well, avoid adding raw vegetables, and keep the total add-ins modest. Also make sure the center has set and reached 160°F (71°C) before resting and cutting. A 5-minute rest helps the egg firm up enough for cleaner slices.
Can I use a different kind of potato?
Yes. Yukon Gold and other yellow potatoes are convenient because they stay creamy, but russet or red potatoes also work. Russets tend to break down more easily, so turn them gently; red potatoes may hold their shape a little more firmly. Whatever variety you use, slice it evenly and cook until fork-tender before adding the eggs.
Can children help make this recipe?
Children can measure the salt, whisk the eggs with supervision, fold the cooled potato mixture into the eggs, or sprinkle parsley over the finished wedges. An adult should handle peeling and slicing, hot oil, moving the skillet, and checking the hot tortilla. Keep children away from the stovetop and oven during cooking, and serve pieces only when they are cool enough to eat safely.
Can I make it without an ovenproof skillet?
Yes. Cook the potatoes and onion in your regular skillet, drain them, then mix them with the eggs. Pour the mixture into a lightly oiled 9-inch (23 cm) oven-safe baking dish and bake at 350°F (175°C) until set and 160°F (71°C) in the center. A deeper dish may need extra time, so use the thermometer reading as the final guide.
Related
- Spanish Recipe Blogs: A Classic Tortilla Española
- Spanish Recipe Cards: A Classic Tortilla Recipe
- Traditional Spanish Food: Classic Spanish Tortilla Recipe
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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