Romesco Sauce

Recipe by Steven Weitzman, founder & head chef of Grilly CheesePublished 2026-11-08Updated 2026-11-08

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Romesco sauce with jarred roasted red peppers, skillet-toasted almonds and bread, garlic and smoked paprika. A thick grilled cheese dip with 20 minutes of active work.

Romesco sauce with roasted red peppers and toasted almonds in an ivory bowl.

Romesco sauce is a thick, nutty red-pepper sauce that brings smoky sweetness and tang to grilled cheese, fries and vegetables. This pantry-friendly take on the Catalan sauce uses jarred roasted bell peppers, sliced almonds and a little toasted bread. A skillet builds the toasted flavor, and a food processor brings everything together. Tomato paste supplies concentrated tomato flavor without another roasting step; red wine vinegar balances the rich almonds and olive oil. Prep: 10 minutes · Cook: 8 minutes · Cool: 5 minutes · Finish: 2 minutes Total: 25 minutes · Active work: about 20 minutes Yield: about 1 1/2 cups · Servings: 6 portions of about 1/4 cup

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How to make Romesco Sauce

Makes About 1 1/2 cups; 6 servings of about 1/4 cup. Listed times are estimates; visual and temperature cues control doneness.

Prep
10 min
Cook
8 min
Rest
0 min
Total
18 min
Yield
About 1 1/2 cups; 6 servings of about 1/4 cup

Equipment

  • 10- or 12-inch skillet
  • Food processor
  • Cutting board
  • Knife
  • Measuring cups and spoons
  • Spatula
  • Plate

Ingredients

  • •1 1/4 cups jarred roasted red bell peppers, measured after draining and patting dry (200 g)
  • •1/3 cup raw unsalted sliced almonds (30 g)
  • •1 slice white or sourdough bread, cut into 1/2-inch cubes (30 g; about 1/2 cup)
  • •3 tablespoons olive oil (45 ml), divided
  • •1 small garlic clove, peeled and roughly chopped
  • •1 tablespoon tomato paste (15 g)
  • •1 tablespoon red wine vinegar (15 ml), plus up to 1 teaspoon more to taste
  • •1/2 teaspoon sweet smoked paprika
  • •1/4 teaspoon fine salt, plus more to taste
  • •1/8 teaspoon ground black pepper
  • •2 tablespoons water (30 ml), plus more by the teaspoon as needed

Instructions

  1. 1

    Toast the almonds and bread

    Heat 2 teaspoons of the olive oil in a 10- or 12-inch skillet over medium-low heat. Add the sliced almonds and bread cubes and cook for 5–7 minutes, stirring and turning frequently, until the almonds are light golden and the bread is golden on several sides. Lower the heat if the almonds color before the bread. Immediately scrape everything onto a plate and let cool for 5 minutes.

    Toast the almonds and bread: Romesco Sauce
  2. 2

    Blend the sauce

    Put the cooled almonds and bread in a food processor and pulse until reduced to coarse crumbs. Add the drained peppers, garlic, tomato paste, red wine vinegar, smoked paprika, salt, pepper, 2 tablespoons water and all the remaining olive oil. Process for 45–60 seconds, stopping to scrape the sides with the machine switched off, until thick and evenly combined with a fine almond texture. It should hold a soft mound on a spoon.

    Blend the sauce: Romesco Sauce
  3. 3

    Adjust and serve

    Taste the sauce and add a pinch more salt or up to 1 teaspoon additional vinegar if needed. If too stiff for dipping, pulse in water 1 teaspoon at a time; if slightly coarse, process for another 10–20 seconds. Transfer to a bowl and serve with grilled cheese strips or fries. Refrigerate any portion you are not serving promptly.

    Adjust and serve: Romesco Sauce

Tips

  • →Keep the skillet at medium-low and stir often. Sliced almonds go from golden to bitter quickly, especially in a heavy pan.
  • →Move the toasted ingredients out of the hot skillet immediately. They continue to brown if left in it.
  • →Pat the peppers dry before blending. Excess brine can make the dip thin and overly salty.
  • →Aim for fine texture rather than a perfectly smooth purée. A little almond texture is part of the sauce.
  • →Add water a teaspoon at a time at the end. The sauce should spread easily while still staying on a piece of grilled cheese.

Variation

Sherry vinegar can replace the red wine vinegar in the same quantity. If using a bread with a very hard crust, trim the toughest part before weighing 30 g. For a gluten-free version, use an equal weight of gluten-free bread and check every packaged ingredient. Sweet paprika can replace smoked paprika for a less smoky result. Almonds give this recipe its character. This version contains tree nuts; do not treat another nut or a seed substitution as automatically safe for someone with an allergy.

Questions and answers

What is romesco sauce made of?

Romesco sauce is a nut-and-pepper sauce associated with Catalan cooking, with recipes varying in their nuts, peppers and tomatoes. This easy version uses roasted red bell peppers, toasted almonds and bread, tomato paste, garlic, olive oil, vinegar and smoked paprika.

Is romesco sauce spicy?

This version is mild when made with sweet roasted bell peppers and sweet smoked paprika. Hot smoked paprika or spicy jarred peppers will make it hotter, so check the labels.

Can I use jarred peppers for romesco sauce?

Yes. Drain and pat them dry, then measure 200 g so the sauce has enough pepper flavor without excess brine.

Should romesco sauce be smooth or chunky?

A finely textured sauce with tiny almond particles works well for dipping. Blend until there are no large pieces of pepper, bread or nuts, but stop before trying to make it as smooth as ketchup.

What do you eat romesco sauce with?

Serve it with grilled cheese strips, fries, roasted vegetables or crusty bread. Its smoky pepper flavor and vinegar tang pair especially well with cheddar and mozzarella sandwiches.

Can you make romesco sauce ahead of time?

Yes; keep it covered in the refrigerator and use within 3–4 days. It may thicken or separate slightly, so stir well and add a teaspoon of water if needed before serving.

Storage and reheating

Grilled cheese is best eaten right away. Refrigerate leftovers promptly in a covered, shallow container at 40°F (4°C) or below, within 2 hours of cooking—or within 1 hour when the temperature is above 90°F (32°C). Use within 3–4 days. Reheat to 165°F (74°C), checking the center with a food thermometer. A skillet over low heat, briefly covered and then uncovered, can warm the center and help restore the crust. If using previously cooked chicken or other leftovers, count storage time from when that ingredient was first cooked. See USDA leftovers guidance and FoodSafety.gov minimum temperatures.

Dietary note: This recipe is labeled VegetarianDiet.

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