Authentic Romesco Sauce Recipe: Spanish Red Pepper & Almond Sauce

Romesco sauce is a classic Spanish-style sauce made from simple ingredients in under 10 minutes. Use it as a dip for raw or roasted vegetables, a sauce for pasta or pizza, or to dress roasted potatoes. This oil-free version is bright, nutty, and one of my new favorite sauces.

Over the past few weeks I sampled romesco in several restaurants—delicious plates of potatoes and roasted cauliflower topped with romesco inspired me to create a quick, oil-free homemade version. This recipe keeps the bold flavor and creamy texture without added oil, and it comes together in minutes.

What is Romesco Sauce?

Romesco is a rich Spanish sauce traditionally made from charred tomatoes and roasted red peppers, pureed and thickened with toasted almonds and bread. Fresh garlic, vinegar, and smoked paprika or red pepper flakes add brightness and a hint of heat.

When blended, the peppers and almonds create a creamy, slightly textured sauce with a sweet, nutty, and smoky profile. While romesco commonly accompanies fish and meats, it shines on roasted vegetables—eggplant, cauliflower, and potatoes in particular—and is excellent as a dip for bread or raw vegetables.

Romesco Sauce Ingredients

This oil-free romesco relies on a few straightforward pantry items. Leaving oil out reduces greasiness while keeping the bright, punchy flavors intact.

• Roasted red peppers: Jarred peppers packed in water are a convenient shortcut, or roast fresh peppers if you prefer.
• Tomato paste: Adds concentrated tomato flavor and umami.
• Red wine vinegar: A small amount brightens the sauce—add sparingly to avoid overpowering acidity.
• Almonds: Blanched almonds provide creaminess and a nutty backbone; see notes for nut-free alternatives.
• Paprika: Sweet or smoked paprika lends depth and a mild smoky note.
• Salt: Enhances all the other flavors.

Jarred roasted red peppers are a time-saving option and work very well for this quick recipe.

How to Make Romesco Sauce

• Use a small food processor, blender cup, or an immersion blender for best results.
• Place all ingredients in the processor.
• Pulse or blend until combined. You can leave the sauce slightly textured or blend until smooth—both are delicious. I prefer a thicker, slightly textured romesco.
• Taste and adjust salt or paprika to your preference.
• Serve warm or cold—this sauce is great either way and takes under 10 minutes to prepare.

What to Serve with Romesco Sauce

• As a pasta sauce
• On top of tofu burgers
• As a marinade for tofu (grill, bake, air-fry, or pan-fry)
• As a sandwich spread
• On cauliflower tacos
• Dip for raw or grilled vegetables
• On a charcuterie board with crackers, fruit, and vegan cheeses
• Stirred into a veggie tofu scramble
• Poured over roasted sweet potato chips
• As a dip for toasted bread or flatbreads
• As a finishing sauce for soups or grilled corn
• As a pizza sauce

Recipe FAQs

Tips

• For an extra-creamy texture, soak almonds overnight or boil them for 10 minutes and peel before blending.
• To freeze, portion sauce into ice-cube trays or small airtight containers; freeze for up to 3 months.
• Store in the refrigerator for 5–7 days in an airtight container.
• To reheat, warm gently over low heat until heated through; the sauce is equally good cold.

No matter how you use it—dipped, spread, or drizzled—this oil-free romesco is versatile and flavorful. Enjoy!

Other Great Vegan Sauces, Dips, and Dressing

If you try this romesco sauce and enjoy it, please leave a rating and comment — feedback is always appreciated.

📖 Recipe