Mojo rojo is a thick, garlicky red pepper sauce from the Canary Islands that takes about 25 minutes to make and keeps in the fridge all week. It’s worth having on hand because it does real work — spread it on a burger bun, use it as a dipping sauce for fries, or spoon it over grilled chicken. The flavor is smoky, a little sharp from the vinegar, and genuinely spicy if you keep the full cayenne amount.
The short version of why this works
Two things drive this recipe. First, roasting the peppers under the broiler until the skins blister and blacken — not just soften — is what gives the sauce its depth. Pale, under-roasted peppers produce a flat, sweet sauce instead of a smoky one. Second, the olive oil goes in last and slowly, while the processor is running. That gradual drizzle is what turns a chunky pepper-and-garlic paste into a smooth, cohesive sauce that clings to food instead of pooling under it. Rush either step and the result is noticeably worse.
Smart swaps
- Smoked paprika: This is non-negotiable for the flavor profile — regular sweet paprika won’t give you the same smokiness. Most large grocery stores carry it in the spice aisle.
- Red wine vinegar: Sherry vinegar is a closer substitute than white wine vinegar if that’s what you have. Apple cider vinegar works in a pinch but adds a slightly fruity note.
- Olive oil: Use the best extra virgin you have — with only a handful of ingredients, the oil flavor comes through clearly. A light or “pure” olive oil will taste noticeably blander.
- Cayenne pepper: If you want heat but not cayenne’s particular sharpness, a small dried árbol chili (seeds removed, soaked briefly in warm water) blends in smoothly.
What can go wrong
- The sauce turns out watery: This usually means the roasted peppers weren’t drained before blending. After peeling, lay the strips on a paper towel for a minute or two to shed excess liquid before they go into the processor.
- The sauce breaks and looks oily: The olive oil was added too fast. If this happens, don’t throw it out — transfer the sauce to a bowl, start fresh in the processor with one small piece of roasted pepper, and slowly blend the broken sauce back in.
- Garlic tastes raw and harsh: Four raw cloves is a lot if your garlic is large and pungent. Taste a small piece before blending — if it’s very sharp, drop to three cloves, or briefly roast the garlic alongside the peppers.
- The sauce is too thick to pour: Add olive oil a teaspoon at a time and blend again. Alternatively, a small splash of warm water loosens it without changing the flavor.
- Bitterness from the pepper skins: Any blackened skin left on the peppers after peeling will make the sauce bitter. Take your time peeling — it’s worth the extra two minutes.
Spanish Mojo Rojo Sauce
Ingredients
- 2 large red bell peppers roasted
- 4 cloves garlic peeled
- 2 tbsp red wine vinegar
- 1 tsp smoked paprika
- ½ tsp cayenne pepper
- 1 tsp sea salt
- ½ cup olive oil extra virgin
Instructions
- Preheat your broiler and place the red bell peppers on a baking sheet. Roast them under the broiler until their skins blister and blacken, turning occasionally, for about 10 minutes.
- Once roasted, remove the peppers from the oven and place them in a bowl, covering them with plastic wrap for 5 minutes. This will help loosen their skins.
- Peel the skins off the peppers and remove the seeds. Slice them into strips.
- In a food processor, blend the roasted peppers, garlic, red wine vinegar, smoked paprika, cayenne pepper, and sea salt until smooth.
- While blending, gradually drizzle in the olive oil until the sauce is emulsified and has a creamy consistency.
- Taste and adjust the seasoning if necessary, adding more vinegar for acidity or salt for depth.
Notes
Nutrition
Your questions, answered
Can I use jarred roasted red peppers instead of roasting my own?
Yes, jarred peppers work and will save you the broiler step. Drain and pat them dry thoroughly first — jarred peppers carry a lot of brine, which will water down the sauce and throw off the seasoning.
How spicy is this sauce?
With the full half teaspoon of cayenne, it has a noticeable kick — warm rather than fiery. If you’re not sure about your heat tolerance, start with a quarter teaspoon and taste before adding more.
Can I make this without a food processor?
A blender works just as well. If you only have an immersion blender, use a tall narrow container and expect a slightly chunkier result — still good, just more rustic.
What burgers does this sauce actually go well with?
It’s best on beef burgers, especially anything grilled or smashed with a good char. It also works well on chicken burgers where you’d normally reach for mayo — the acidity cuts through richer toppings.
How do I know when the peppers are roasted enough under the broiler?
The skin should be mostly black and blistered on each side — not just spotted. If the skin isn’t fully charred, it won’t steam off cleanly and you’ll spend a lot of time picking off stubborn bits.