This is a blender sauce made from fresh cilantro, jalapeño, garlic, sour cream, mayonnaise, lime juice, and cumin. It takes 10 minutes and no heat. The honest reason to make it: it keeps well in the fridge and works on burgers, grilled chicken, and wraps all week without any extra cooking.
The technique that matters
The order you add ingredients to the blender matters more than you’d think. Pulse the cilantro, jalapeño, and garlic first until they’re finely chopped — if you dump everything in at once, the sour cream cushions the blades and the herbs end up in uneven chunks. Once the aromatics are broken down, then add the sour cream, mayonnaise, lime juice, and cumin and blend until smooth. Scrape the sides down at least once. That two-stage approach is the difference between a sauce with visible green flecks throughout and one where half the cilantro is still whole.
What can go wrong
- Sauce turns watery after a day in the fridge: Fresh cilantro releases moisture over time. Stir before serving and drain off any pooled liquid. It won’t affect flavor.
- Garlic tastes harsh and raw: Two raw cloves is the max for this volume. If your garlic is older or very pungent, use one clove. Roasted garlic also works and gives a milder, slightly sweet result.
- Color turns dull olive-green by day two: That’s oxidation — normal and harmless. Press plastic wrap directly against the surface of the sauce before sealing the container to slow it down.
- Sauce is too thick to drizzle: Thin it with lime juice a teaspoon at a time rather than water, so you don’t dilute the flavor.
- Heat level is inconsistent batch to batch: Jalapeños vary a lot in spice. Taste a small piece of the pepper before blending. If it’s very hot, start with half and blend, then taste before adding more.
Ingredient notes
- Cilantro: Packed means actually packed — loosely filled, you’ll end up with a thin, pale sauce. Include the tender stems; they blend smooth and add flavor.
- Mayonnaise: The recipe calls for olive oil mayo, which is slightly lighter. Standard mayo works fine. Skip the miracle whip — the sweetness throws off the balance.
- Sour cream: Full-fat gives the best texture and holds up better in the fridge over several days. Low-fat versions tend to get thinner as they sit. Skip reduced-fat sour cream if you’re making this ahead — it goes watery faster than full-fat.
- Ground cumin: Use it fresh from a recently opened jar. Cumin that’s been sitting open for over a year loses its punch and the sauce will taste flat.
Leftovers and meal prep
Store the sauce in an airtight container in the fridge for up to 5 days. It actually tastes better on day two once the garlic and cumin have had time to mellow into the base. Press plastic wrap directly onto the surface before putting the lid on to keep the color brighter. This sauce does not freeze well — the sour cream breaks and the texture turns grainy after thawing. If you want a larger batch for the week, the recipe doubles cleanly; just make sure your blender is large enough to handle the extra volume without overflow when you blend the creamy ingredients.
Creamy Cilantro Jalapeño Sauce
Ingredients
- 1 cup fresh cilantro leaves washed and packed
- 1 pcs jalapeño pepper remove seeds for less heat
- 2 cloves garlic peeled
- ½ cup sour cream preferably organic
- ¼ cup mayonnaise preferably with olive oil
- 1 tbsp lime juice freshly squeezed
- ½ tsp ground cumin
- 1 pinch salt to taste
- 1 pinch ground black pepper freshly ground, to taste
Instructions
- In a blender or food processor, combine the cilantro leaves, jalapeño, and garlic. Pulse until the mixture is finely chopped.
- Add the sour cream, mayonnaise, lime juice, and ground cumin. Blend until smooth and creamy, scraping down the sides as needed.
- Taste and season with salt and black pepper to your liking. Adjust lime juice if a more zesty flavor is desired.
- Transfer the sauce to a serving bowl, using a spoon to create light swirls on the surface for a decorative touch.
Notes
Nutrition
Frequently asked questions
Can I make this sauce a day or two ahead?
Yes, and it’s actually better after a night in the fridge. The garlic softens and the cumin integrates, so the flavor is more rounded than it is right after blending. Keep it sealed with plastic wrap pressed against the surface and give it a good stir before using.
How do I use this on a burger without it making the bun soggy?
Spread it on the cut side of the top bun rather than directly on the patty. That layer of bun acts as a barrier and slows down moisture transfer. If you’re building burgers ahead of time, keep the sauce in a separate container and add it just before serving.
Can I use dried cilantro instead of fresh?
No — dried cilantro won’t work here. It has almost none of the bright, grassy flavor that fresh cilantro provides, and the sauce will taste flat and dusty. If fresh cilantro isn’t available, flat-leaf parsley is a reasonable substitute for the texture and color, though the flavor will be noticeably different.
More burger recipes to try
- Wendy’s Bacon Jalapeño Burger
- Angus Bacon Guacamole Burger
- Spicy Jalapeño King Burger
- Ultimate Guacamole Bacon Burger