My romesco sauce is a Sunday batch I reach for all week. It blends roasted red peppers, toasted almonds, a little country bread, sherry vinegar, and smoked paprika into a thick, smoky, deep red-orange sauce that goes on almost everything. This is the real Catalan version, roasted from scratch, and it comes together in about an hour.
My roasted red pepper sauce tastes like the romesco I had in Spain
I first had real romesco in Spain, and I have been chasing that exact flavor since. Romesco is a Catalan sauce from Tarragona, on the coast, where it started as something fishermen made to go with the day’s catch. The traditional base is roasted red peppers, almonds, garlic, bread, and smoked paprika, blended with good olive oil and sharp sherry vinegar into a thick, smoky sauce. Every jarred-pepper version I tried at home landed close but flat. Roasting the peppers myself finally closed the gap.
The sauce lives or dies on three things. Roast the peppers until the skins blacken and collapse, because that char is the smoky backbone. Use a slice of actual bread, the traditional Catalan thickener that gives romesco body and keeps it from tasting like a thin pepper puree. And reach for smoked paprika and sherry vinegar, since the nuttier acid and the smoke make it taste like Spain instead of a red sauce.
What I love about a batch is how far it stretches. Toss it with rigatoni for my romesco pasta, spoon it over crispy smashed potatoes, swirl it into eggs, or set it out as a dip with bread and raw vegetables. It keeps five days in the fridge and freezes for two months, so one hour of roasting feeds a week of meals.
Ingredients worth discussing
Full ingredient list and detailed instructions in the recipe card.
- Roast the red bell peppers yourself rather than reaching for a jar. The char from blackening the skins under high heat is the smoky backbone of the sauce, and it is the single biggest difference between flat and real romesco.
- Use raw almonds and toast them in a dry skillet until golden. They are the body and nuttiness of the sauce; pre-toasted or salted almonds throw off the balance.
- Add a slice of country bread, slightly stale if you have it. This is the traditional Catalan thickener that gives romesco its texture and keeps it from sliding into thin pepper puree. Panko or sandwich bread does not work the same way.
- Reach for smoked paprika (pimentón). La Chinata is the standard Spanish brand, and the smoke it carries is non-negotiable here. Regular Hungarian paprika will not give the same depth.
- Use sherry vinegar instead of red wine vinegar. The nuttier, more complex acid matches the toasted almonds, and it is at most grocery stores now.
Shruthi’s Top Tips
Tips for the best romesco sauce
A few things I learned testing this into a sauce I actually keep on hand.
- The sauce should be thick and spoonable, not runny. If it is too thick, loosen it with a tablespoon of water or olive oil; too thin, blend in a few extra almonds.
- Taste and adjust at the very end. More salt if it tastes flat, more sherry vinegar for brightness, more smoked paprika for depth, in small increments.
- Don’t rinse the roasted peppers after peeling. Running them under water washes away the smoky char you worked to build.
- Blend to mostly smooth but leave a little texture. A completely silky sauce loses the rustic body that makes romesco romesco.
How to make romesco sauce
- Preheat the oven to 425°F. Place the whole red bell peppers on a rimmed baking sheet. Slice the top off the head of garlic, drizzle with olive oil, wrap tightly in foil, and add to the sheet. Roast 35 to 40 minutes, turning the peppers once or twice, until the skins are blackened and collapsing and the garlic is soft.
- Transfer the hot peppers to a bowl and cover tightly for 10 minutes to loosen the skins. Set the garlic packet aside to cool.
- While the peppers steam, toast the almonds in a dry skillet over medium-low heat, shaking often until golden and fragrant.
- Peel the skins off the cooled peppers with your fingers and remove the stems, cores, and seeds. Don’t rinse them or you’ll lose the smoky flavor. Add the flesh to a food processor.
- Squeeze in the roasted garlic. Add the toasted almonds, torn bread, sherry vinegar, smoked paprika, salt, pepper, and 2 tablespoons olive oil. Blend until mostly smooth but still slightly textured.
- With the motor running, drizzle in the last 2 tablespoons of olive oil to emulsify. Taste and adjust salt, vinegar, and paprika. The sauce should be thick, spoonable, and deep red-orange.
How to serve romesco sauce
A batch of romesco earns its hour because it goes on so much. I mostly use it in my romesco pasta, where it coats rigatoni like a smoky almond pesto. Beyond pasta, spoon it over crispy smashed potatoes, swirl it into shakshuka or eggs at brunch, or set it out as a dip alongside eggplant hummus with bread and raw vegetables.
Romesco earns its keep as a do-everything sauce, so I rarely make it for just one thing. Spoon it over grilled or roasted vegetables (charred broccolini, blistered green beans, and roasted carrots are all happy here), spread it thick under a fried or poached egg, or use it as the base of a grain bowl with chickpeas and greens piled on top.
It’s also a great topper for a simple protein plate: dollop it next to seared tofu, a wedge of grilled halloumi, or, for the meat-eaters at the table, alongside grilled chicken or fish. Thin it with a little extra olive oil and it becomes a dressing; keep it thick and it’s a dip for crusty bread or crudités.
Variations
- For gluten-free, skip the bread and add 2 extra tablespoons almonds to the sauce.
- For a greener spin, fold it into a spinach shakshuka or serve it with steamed broccoli.
- For more heat, blend in a roasted dried ñora or a pinch of cayenne with the peppers.
Storage and reheating
Store romesco in an airtight container in the fridge for up to 5 days, or freeze for up to 2 months. Bring it to room temperature before serving, or warm gently. The flavor deepens after a day, so a make-ahead batch is often better than fresh.
Romesco Sauce
Ingredients
- 4 large red bell peppers
- 1 whole head garlic
- 1 tablespoon extra-virgin olive oil, for roasting
- ½ cup raw almonds
- 1 slice country bread, or baguette, about 1 oz, torn into rough pieces
- 2 tablespoons sherry vinegar
- 1 teaspoon smoked paprika, pimentón
- ¾ teaspoon kosher salt
- ¼ cup extra-virgin olive oil, for the sauce
- ¼ teaspoon freshly ground black pepper
Instructions
- Preheat the oven to 425°F.
- Set the whole red bell peppers on a rimmed baking sheet. Slice the top off the head of garlic, drizzle with 1 tablespoon olive oil, wrap tightly in foil, and add to the sheet.
- Roast 35 to 40 minutes, turning the peppers once or twice, until the skins are blackened and collapsing and the garlic is soft.
- Transfer the hot peppers to a bowl, cover tightly, and steam 10 minutes to loosen the skins. Set the garlic aside to cool.
- While the peppers steam, toast the almonds in a dry skillet over medium-low heat, shaking often, 4 to 5 minutes until golden and fragrant.
- Peel the skins off the cooled peppers with your fingers and remove the stems, cores, and seeds. Don't rinse them or you'll lose the smoky flavor. Add the flesh to a food processor.
- Squeeze in the roasted garlic. Add the toasted almonds, torn bread, sherry vinegar, smoked paprika, salt, pepper, and 2 tablespoons olive oil. Blend until mostly smooth but still slightly textured.
- With the motor running, drizzle in the last 2 tablespoons olive oil to emulsify. Taste and adjust salt, vinegar, and paprika. The sauce should be thick, spoonable, and deep red-orange.
Notes
- For gluten-free, skip the bread and add 2 extra tablespoons almonds to the sauce.
- The sauce is naturally vegan as written.
- Use leftovers on pasta, potatoes, eggs, toast, roasted vegetables, or as a dip.
- The flavor deepens after a day, so it is great made ahead.
- Keeps 5 days in the fridge and freezes well for 2 months.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
