Spanish · Seafood
Prawns with Romesco sauce
About this recipe
Spanish cooking flows from olive oil, garlic, paprika, and tomato — the matriz of the Mediterranean kitchen — applied across tapas, slow-cooked stews, and the seafood traditions of both coasts. Sherry vinegar and Spanish saffron supply most of the brightness and depth.
As a seafood dish, Prawns with Romesco sauce demands timing precision: the difference between perfect and overcooked is often less than 90 seconds, and the result of overshooting is a textural penalty there's no fixing.
Set your servings in the scaler above and every line of the recipe rewrites itself with smart fractions and unit promotion. Open Cook Mode to step through it hands-free with timers running.
Recipe data is sourced from TheMealDB's open community database; ScaleRecipe handles the curation, the scaling math, the editorial commentary, and the conversion utilities woven into each page.
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Method
- step 1
- Prepare ahead - halve the pepper lengthways and remove the seeds and stalk. Line a grill pan with foil and put the pepper halves, skin side up, on the grill pan with the whole garlic cloves, chilli and tomato. Grill for 2 minutes, turn the tomato, then grill for a further 2 minutes. Remove the tomato with a large spoon, then peel, quarter and remove the seeds. Then chop the tomato roughly.
- step 2
- Continue grilling the pepper, chilli and garlic for 4-5 minutes, until the pepper and chilli skins have blackened and the garlic is starting to soften (the garlic skin will start to split when it is ready). When cool enough to handle, peel and halve the chilli, and scrape out and discard the seeds. Peel the pepper and roughly chop both the pepper and chilli.
- step 3
- Spread nuts over the foil and grill until toasted. Finely chop the nuts and parsley in a food processor. Tip into a small bowl.
- step 4
- Heat 3 tablespoons of oil in a frying pan, add the pepper, garlic and chilli and fry for 3 minutes. Tear up the bread and add to the pan, turning it in the oil until lightly browned. Pulse in food processor with the tomatoes, salt, vinegar and oil until roughly chopped. Tip into a bowl. Leave to cool and store in fridge for up to 3 days.
- step 5
- On the day add the nuts and parsley to the sauce and mix. Serve in a small bowl on a plate with the peeled prawns. Supply cocktail sticks for spearing the prawns.
Cooking notes
Scaling works best when you weigh ingredients rather than measure by volume — small differences in packing can compound at higher multipliers.
For volume-to-weight conversions of any ingredient — flour, sugar, butter, salts — use the ingredient converter. To translate the recipe's oven temperature between °C, °F and gas mark, see the temperature converter.
When you scale this recipe up or down, remember that cooking time does not scale linearly. A doubled cake takes longer, but not twice as long; a doubled soup takes roughly twice as long. The cooking-time guide gives sensible starting estimates by dish geometry.
Scaling notes
Scaling Prawns with Romesco sauce
Prawns with Romesco sauce is written for around four servings as it stands on this page — scaling it up for a party or down for a meal-for-one is the small math problem most home cooks face every week. Here's how this particular dish responds to scaling, what changes linearly, and what doesn't.
Seafood is the most scaling-sensitive protein because the overcooking window is narrow and the penalty is steep. Scale Prawns with Romesco sauce per piece if you can — cook three fillets in two batches rather than crowd the pan into one. Sauce-based seafood dishes scale linearly, but always taste before adding more salt: brininess from the seafood itself doesn't scale predictably.
Skip the math entirely — ScaleRecipe's scaler rewrites every ingredient line above with proper culinary fractions and smart unit promotion the moment you change the serving count. Open the scaler →
Beyond the recipe
Substitutions & make-ahead — Prawns with Romesco sauce
Two things home cooks ask about most when they're outside the recipe's exact assumptions: what swaps work for which ingredients, and how the dish behaves when you make it ahead. Both depend on what Prawns with Romesco sauce is doing structurally — here's the practical version.
Substitution ideas
Tree nuts
Walnuts ↔ pecans (similar oil content and bite); almonds ↔ hazelnuts (firmer texture). For nut-free, toasted pumpkin seeds, sunflower seeds, or roasted chickpeas give similar crunch and a less rich flavour profile.
For weight-based swaps and arbitrary quantities, the ingredient density converter and the cup-to-grams chart cover most pantry staples.
Make-ahead and storage
Seafood is the worst-tempered category for make-ahead — texture and flavour both degrade quickly after cooking. Prawns with Romesco sauce should ideally be cooked the day it's served. If a make-ahead is unavoidable, prep components (the sauce, marinade, vegetables, garnishes) the day before and cook the fish or shellfish at the last moment. Cooked seafood develops a pronounced fishy off-flavour within 24 hours even when properly refrigerated.
Recipe video
Prawns with Romesco sauce
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OpenCooking time
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OpenIngredient density
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OpenFrom the journal
Original essays on the small details.
The why behind the technique — original writing on the ingredient and equipment choices that separate a good cook from a frustrated one.
Reading a recipe like a chef
The 30-or-so recipe terms that show up most often, decoded
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Cooking for one — scaling principles
The math, the practical realities, and the recipes designed for one from the start
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How long do leftovers actually last?
Beyond the USDA's 3–4 days: the variables that actually determine the safe window
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Where this recipe sits in the wider tradition.
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