This chimichurri mayonnaise is one of those small, brilliant ideas that changes how I approach weeknight dinners. It’s bright, herb-forward, and utterly simple — just mayonnaise, a splash of chimichurri, and a little lemon to lift everything. No complicated emulsions. No long ingredient list. It comes together in minutes and tastes like you spent time coaxing layers of flavor out of fresh herbs.

I keep a jar in my fridge for everything: dollop it on grilled chicken, use it as a sandwich spread, or turn it into a quick dip for roasted vegetables. It makes even plain things taste purposeful. The texture stays rich and silky, and the chimichurri gives it a hit of garlic, vinegar, and herb that brightens the mayo rather than overpowering it.

Below you’ll find everything you need to make it exactly as I do, plus practical tips for substitutions, storage, and common pitfalls. If you like clean, direct instructions and straightforward flavor, you’re going to enjoy this.

What You’ll Gather

This recipe keeps the pantry demands minimal. You need just three items and a small bowl. Measure carefully and use a tight lid for resting in the fridge so the flavors meld well.

Ingredients

2 tablespoons chimichurri sauce — adds herby, tangy, garlicky flavor; adjust to taste if your chimichurri is particularly acidic.
1 teaspoon fresh lemon juice — brightens the mixture and balances the richness of the mayonnaise.
1 cup mayonnaise — the creamy base that carries the chimichurri; use full-fat for best texture.

The Method for Chimichurri Mayonnaise

Measure 1 cup mayonnaise into a medium mixing bowl.
Add 2 tablespoons chimichurri sauce and 1 teaspoon fresh lemon juice to the bowl.
Whisk or stir vigorously until the mixture is smooth and evenly combined.
Transfer the mayonnaise to a container with a lid or cover the bowl tightly. Refrigerate for at least 2 hours to allow the flavors to develop.
Stir the chimichurri mayonnaise again before serving.

Notes on technique: whisking vigorously is key because you want a homogeneous emulsion so each spoonful tastes consistent. If you prefer a looser texture, whisk until combined but stop when you reach your desired body. The minimum rest time is two hours; during that time the chimichurri’s oil and acidic notes soften and infuse into the mayo. For the cleanest flavor, make the mayonnaise no more than a day ahead, although it will keep for several days in the fridge (see storage section below).

Why I Love This Recipe

First, it’s efficient. Three ingredients, five minutes of hands-on time, and a flavorful condiment that elevates many dishes. If you keep chimichurri on hand, this is the fastest way to turn it into something versatile.

Second, the contrast is what carries this for me: creamy mayo against bright, herbal chimichurri. The lemon juice ties them together, cutting through the fat and bringing a freshness that keeps the spread from feeling heavy. It plays well with grilled proteins and roasted vegetables, and it gives sandwiches a professional touch without fuss.

Finally, it’s reliable. The flavors are bold but balanced, and the method doesn’t demand technique beyond mixing and chilling. That makes it an ideal finishing sauce for busy nights and a satisfying addition when you want to impress with minimal effort.

If You’re Out Of…

If you’re out of chimichurri sauce: use a similar herb-forward sauce (store-bought chimichurri or a rustic herb pesto will work in a pinch). The flavor profile will shift — pesto will be nuttier — but the concept of an herb-accented mayo remains the same.

If you’re out of fresh lemon juice: a small splash of vinegar (white wine or sherry vinegar) can mimic the bright acidic lift. Use sparingly and taste as you go.

If you only have low-fat mayonnaise: the result will be thinner and less luscious, but it will still carry the chimichurri flavor. Consider reducing any extra liquid components in dressings or sandwiches you pair it with.

Equipment & Tools

Keep the equipment minimal: a medium mixing bowl, a whisk or sturdy spoon, measuring spoons, and a covered container for chilling. If you prefer, a small food processor or an immersion blender will combine the ingredients even more quickly and create an extra-smooth texture, but it’s not necessary.

Optional extras

A rubber spatula helps scrape the bowl clean and transfers every bit of sauce into the serving container. A tight-sealing jar keeps the mayonnaise fresher and prevents it from picking up other fridge smells.

Avoid These Traps

Overwhisking in the sense of trying to aerate the mayonnaise won’t break it, but it can make the texture foamier/sensory lighter than intended. Whisk until smooth and no further unless you like a lighter mouthfeel.

Adding too much chimichurri at once can overwhelm the balance. Start with the 2 tablespoons called for, then taste after the recommended chill. If your chimichurri is particularly sharp or vinegary, dial back or use a tablespoon and adjust after the rest period.

Storing at room temperature for long periods is a no. Because this contains mayonnaise, keep it refrigerated. Also, if the chimichurri used contains raw garlic, be mindful of storage times — garlic can change flavor and potential safety over time.

Adaptations for Special Diets

Vegan: use a vegan mayonnaise in place of regular mayo. The flavor will translate well, though textures vary by brand, so choose a brand you trust for creaminess.

Lower-fat: swap in a light mayonnaise or mix half mayo and half plain Greek yogurt for a tangier, lighter spread. Remember the recipe chemistry changes: it will be thinner and less rich.

Herb-forward or low-sodium: if you’re watching sodium, check the chimichurri label or make a low-salt chimichurri. You can also reduce the portion slightly and increase fresh lemon juice for brightness without extra salt.

Cook’s Notes

Taste as you go. Chimichurri recipes vary widely: some are oil-forward, others more vinegary. Start with the recipe amounts and adjust after the two-hour rest if you’d like it brighter, more herbal, or tangier.

Make it ahead to deepen flavor. While two hours is the minimum, 6–12 hours in the fridge allows the aromatics in the chimichurri to marry with the mayonnaise for a rounder, integrated taste. For best texture and freshness, use within a few days.

If you prefer a milder garlic note, make sure the chimichurri you use is on the lighter side for garlic, or use slightly less than 2 tablespoons and increase after tasting later.

Cooling, Storing & Rewarming

Storage: transfer the chimichurri mayonnaise to an airtight container and refrigerate. It will keep well for up to 5 days. Label the container with the date you made it so you don’t lose track.

Do not leave it out at room temperature for extended periods. Because the base is mayonnaise, bacterial growth is possible if left too long, especially in warmer environments.

Rewarming: this condiment is best served cold or at cool room temperature. Do not reheat. If using it on hot food, spoon it on right before serving so the texture and flavor remain intact.

FAQ

Can I use store-bought chimichurri? Yes. Store-bought chimichurri is convenient and works well. Taste it before adding to see how vinegary or garlicky it is, then adjust the amount if needed.

How long does chimichurri mayo last? Stored properly in the refrigerator in a sealed container, it keeps up to 5 days. If your chimichurri contains raw ingredients that are particularly perishable, err on the side of the shorter span.

Can I make this in a blender? Yes. A quick pulse in a small blender or using an immersion blender yields an ultra-smooth texture and ensures perfect integration. Just avoid over-aerating if you prefer a denser spread.

Is this safe to make with homemade mayonnaise? If your homemade mayonnaise is properly prepared and stored, yes. Keep in mind homemade mayo can be more sensitive to temperature and storage time, so consume within a shorter window and follow safe egg-handling practices if using raw eggs.

Hungry for More?

If you loved this, try using chimichurri mayonnaise as a finishing swipe on grilled vegetables, a sandwich spread in place of plain mayo, or as a simple dip for crispy potatoes. It’s one of those small upgrades that makes meals feel intentional. Keep a jar in the fridge and you’ll be surprised how often it saves a meal.

Want to stretch this into a sauce? Fold in a little extra chimichurri and a touch more lemon to make a punchier dip. Use sparingly on a high-quality burger or as a crisp contrast to fatty fish. Little adjustments, big payoff.