Ingredients
Metric weights use grams. US weights use ounces; liquids use fluid ounces. Conversions are rounded. Spoon measures use 5 ml teaspoons and 15 ml tablespoons; cups use 240 ml.
Serves 4
Choose any positive whole number of servings. Ingredients and measured amounts in steps scale together. Times, temperatures and equipment stay unchanged. For larger yields, cook separate original-size batches. Counted ingredients can become fractions; beat eggs before dividing them. Fixed correction-water checks remain fixed.
Main ingredients
Seasoning and finishing
Equipment
24 cm ovenproof nonstick frying pan; lid; large bowl; fork; spatula; oven gloves.
Check all product labels and cross-contact. Diet groups describe this listed draft, not every substitution.
Steps
Soften the vegetables · About 25 min
- Heat 4 tbsp olive oil and 25 g butter in the frying pan over medium-low heat.
- Add 1 large thinly sliced white onion and 400 g peeled waxy potatoes, thinly sliced.
- Cover the pan.
- Cook for 20–25 minutes, turning every 5 minutes.
Check: The potato slices should be fully tender without deep browning.
- Add 2 cloves minced garlic.
- Cook for 1 minute.
Add the eggs · About 10 min
- Heat the grill to medium.
- Put 8 whole eggs, beaten, 2 tbsp chopped parsley and ½ tsp salt in the bowl.
- Mix the eggs with a fork.
- Pour the egg mixture over the potatoes.
- Move the potato slices gently to distribute the egg.
- Cook over low heat for 8–10 minutes.
Check: The edges should set while the top remains slightly wet.
Finish under the grill · About 5 min
- Place the ovenproof pan under the grill, following the pan manufacturer’s heat limit.
- Grill for 3–5 minutes.
Check: The top should set and the centre should contain no runny egg.
- Remove the pan with oven gloves.
- Rest the tortilla for 5 minutes.
- Loosen the edges with the spatula.
- Slide the tortilla onto a plate.
Tips
- Use a plate larger than the pan for turning.
Substitutions
- Use a little extra potato instead of onion if preferred.
Storage
- Refrigerate perishable food within two hours, or within one hour in heat above 32°C / 90°F. Store covered at 4°C / 40°F or below. Use within two days for this draft.
- Reheat cooked dishes to 74°C / 165°F, stirring or turning for even heating. Serve cold salads, dips and chilled desserts directly from safe refrigeration.
Make ahead
- Prepare potatoes ahead; cook the egg mixture close to serving.
FAQ
How firm should eggs be?
This draft sets eggs fully for a clear doneness check.
Why rest before slicing?
It holds together better after a short rest.
How should I store spanish tortilla?
Refrigerate perishable food within two hours, or within one hour in heat above 32°C / 90°F. Store covered at 4°C / 40°F or below. Use within two days for this draft.
Recipe source and adaptation
Measured home adaptation: Miriam Nice: Spanish tortilla.
Omits the source’s separate tomato-bread accompaniment; garlic quantity adjusted accordingly.
Food safety references
FoodSafety.gov: cooking temperatures · Food Standards Agency: rice storage and reheating



