Ensaladilla Rusa (Spanish Potato Salad with Tuna)

Chilled, creamy and gently savoury, ensaladilla rusa is Spain’s much-loved potato salad, commonly served as a tapa, side dish or make-ahead plate for relaxed meals. Tender cubes of potato and carrot are mixed with peas, tuna and chopped egg, then bound with mayonnaise so the salad is rich but still spoonable rather than heavy. Cooling and steam-drying the vegetables before mixing is key to keeping the pieces defined and preventing the dressing from turning watery. Finished with olives, a little olive oil and lemon for brightness, it has the familiar comfort of potato salad with a distinctly Spanish bar-snack character.
Cuisine style Spanish tapas
Cooking style Make-ahead friendly • Crowd-friendly • Minimal cleanup
Time commitment Make-ahead friendly

Why this recipe works

  • Creamy but structured: Cooling the cooked vegetables before adding mayonnaise helps the salad stay firm rather than turning soft or pasty.
  • Brightened richness: Lemon juice and extra virgin olive oil lift the mayonnaise and keep the tuna-potato mixture from tasting heavy.
  • Ideal served chilled: The salad benefits from time in the fridge, making it practical for tapas spreads, packed lunches or preparing before guests arrive.

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Timing notes

  • Cool before mixing: Let the vegetables steam-dry and cool completely before adding the mayonnaise; warm potatoes absorb dressing unevenly and can break down.
  • Serve well chilled: A short final chill helps the flavours settle and gives the salad the cool, firm texture expected of ensaladilla rusa.

Texture tips

  • Keep the vegetables intact: Cut the potatoes and carrots evenly and cook them only until just tender so they hold their shape when folded with the tuna and mayonnaise.
  • Fold, don’t stir hard: Use a gentle folding motion once the dressing is added to avoid crushing the potatoes into a mashed texture.

Ingredient notes

  • Use a waxy, creamy potato: Yukon Gold potatoes work well because they become tender without falling apart as easily as floury potatoes.
  • Adjust the lemon at the end: Taste after chilling and add a little more lemon if the salad needs brightness; cold dishes often need slightly clearer seasoning.

Serving ideas

  • Serve as part of a tapas spread: Pair with bread, olives, cured meats, grilled vegetables or other small plates for a classic Spanish-style serving.
  • Finish simply: Black olives and reserved chopped egg add contrast without distracting from the creamy potato and tuna base.

Equipment you'll need

Ingredients
Instructions
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  1. Peel the potatoes and carrots, then cut them into small, even cubes (about 1 cm) so they cook at the same rate. Put the eggs into a saucepan, cover with cold water and bring to the boil. Simmer for 10 minutes, then cool under cold running water and peel.
  2. Bring a large pot of well-salted water to the boil. Add the potatoes and carrots and cook for 8 to 10 minutes until just tender but not falling apart. Add the peas for the final 1 to 2 minutes, then drain well in a colander.
  3. Spread the vegetables out to steam-dry and cool completely; this keeps the salad firm. Once cool, tip them into a mixing bowl. Chill for 30 minutes.
  4. Flake the tuna and add it to the bowl. Finely chop the eggs and add them in, reserving a little for the top if you like. Add the mayonnaise, olive oil and a squeeze of lemon juice, then fold gently until evenly coated.
  5. Taste and adjust with a little more fine sea salt and lemon juice if needed. Spoon into a serving dish and scatter over the black pitted olives (and the reserved egg, if using). Chill for at least 5 minutes before serving.

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Recipe notes

Tips

  • For the best texture, drain the vegetables thoroughly and let them steam-dry before mixing with the mayonnaise.
  • Fold gently so the potatoes stay in neat pieces rather than turning into mash.
  • Food safety: if serving to pregnant people, young children, older adults, or anyone immunocompromised, use pasteurised eggs or ensure the eggs are thoroughly cooked and cooled quickly.

Substitutions

  • Replace Mayonnaise with avocado-oil-mayonnaise for a slightly lighter flavour.
  • Replace Lemon with lime for a sharper citrus note.
  • Replace Black pitted olives with green-pitted-olives for a brinier finish.

Storage

  • Refrigerate up to 3 days
  • Keep covered in the fridge and serve chilled. Stir gently before serving; if it looks a little dry after chilling, loosen with a small spoonful of mayonnaise and a squeeze of lemon.

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Ensaladilla Rusa (Spanish Potato Salad with Tuna)
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Recipe overview

  • Servings: 4 servings
  • Total time: 1h 20min (30min active)
  • Difficulty: Easy
  • Cuisine: Spanish
  • Allergens:
    Eggs Fish
Beginner friendly Kid friendly

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