I still remember the first time I tasted aji amarillo sauce. I was eating ceviche at a small Peruvian restaurant, and there was this bright yellow sauce on the side. I dipped a piece of fish in it and — honestly — it stopped me in my tracks. It was spicy, yes, but also fruity and warm and unlike anything I had tasted before. I asked the waiter what it was, and he smiled and said “that’s aji amarillo — it’s in everything we make.”
He was not exaggerating. Once I started cooking Peruvian food seriously, I realized aji amarillo sauce shows up everywhere. And once I learned to make it at home, I never stopped. There’s almost always a jar of it in my fridge now.
What Is Aji Amarillo Sauce?
The sauce made from this pepper is one of the building blocks of Peruvian cooking. You’ll find it in ceviche, causa, lomo saltado, papa a la huancaína — it’s everywhere. Peruvian home cooks keep it in the fridge the way other people keep ketchup. It’s that essential.

Where Does Aji Amarillo Come From?
The aji amarillo pepper has been grown in Peru for thousands of years. It is part of almost every Peruvian kitchen. People in Peru use it in soups, stews, rice dishes, and sauces. Without this pepper, Peruvian food would not taste the same.
Why This Sauce Is Used in Almost Every Peruvian Dish
This sauce is used so much because it adds color, heat, and flavor all at once. It is added to ceviche, lomo saltado, causa, and many other dishes. Many Peruvian families make their own version at home and keep it in the fridge to use every day.

Ingredients You Need
Here is what you need to make this sauce at home.
Main Ingredients
- 4 to 5 aji amarillo peppers, fresh or from a jar
- 1 clove of garlic
- 2 tablespoons of vegetable oil
- 1 to 2 tablespoons of mayonnaise or queso fresco (this makes it creamy)
- Juice of half a lime
- Salt to taste
- A little water to help it blend
Substitutes If You Can’t Find Aji Amarillo
Aji amarillo can be hard to find outside of Peru. If you cannot find it fresh, look for aji amarillo paste in a jar. This is sold in many Latin grocery stores and online. If you cannot find that either, you can use a mix of yellow bell pepper and a small habanero pepper. This will not be the same, but it will give you a similar color and some heat.

How to Make Aji Amarillo Sauce — Step by Step
Now let us make the sauce. This is very easy and only takes a few minutes.
Step 1 — Prepare the Peppers
If you are using fresh aji amarillo, cut off the tops and remove the seeds. Wear gloves if you can, because the peppers are spicy and can irritate your skin. If you are using paste, you can skip this step.
Step 2 — Blend the Sauce
Put the peppers, garlic, oil, mayonnaise or cheese, lime juice, and salt into a blender. Add a small amount of water. Blend everything until it is smooth and creamy. If the sauce is too thick, add a little more water and blend again.
Step 3 — Adjust Consistency and Flavor
Taste the sauce. If it needs more salt, add a little. If it is too spicy for you, add a bit more mayonnaise or cheese to make it milder. If it is too thick, add more water. The sauce should be smooth, like a thick dressing.
Tips for the Best Aji Amarillo Sauce
How to Control the Spice Level
If you want it less spicy, remove all the seeds and the white inner parts of the pepper, since that is where most of the heat is. You can also use fewer peppers and add more mayo or cheese to balance it out.
How Long Does It Last? (Storage Tips)
This sauce can be stored in the fridge in a sealed jar for up to one week. Make sure to use a clean spoon every time you use it, so it stays fresh longer.
Ways to Use Aji Amarillo Sauce
Best Dishes to Pair With This Sauce
- Drizzle it over ceviche for extra flavor
- Serve it with lomo saltado or any grilled meat
- Pour it over rice and beans
- Use it as a dip for fries or yuca
- Spread it on sandwiches like pan con chicharron
Other Creative Uses
You do not have to stick to Peruvian food only. This sauce is great on tacos, burgers, eggs, or even as a salad dressing if you thin it out with more lime juice and oil.
Variations of Aji Amarillo Sauce
Creamy Aji Amarillo (with cheese or mayo)
This is the most common version, made with mayonnaise or queso fresco for a smooth, creamy texture. It is milder and works well as a dip.
Cooked vs Raw Version
Some people cook the peppers first by boiling or roasting them before blending. This gives a softer flavor. The raw version, where everything is blended fresh, has a brighter and sharper taste. Both are good, so try both and see which one you like more.
Frequently Asked Questions
Is aji amarillo the same as habanero?
No, they are not the same. Aji amarillo has a fruity flavor with medium heat, while habanero is much hotter and has a different taste. If you use habanero as a substitute, use less of it.
Can I make this sauce ahead of time?
Yes. In fact, it tastes even better after a few hours in the fridge, because the flavors mix together. You can make it a day before you need it.
What can I substitute for aji amarillo paste?
If you cannot find the paste, try a mix of yellow bell pepper with a small amount of cayenne pepper or habanero for heat. It will not taste exactly the same, but it will be close.
Final Thoughts
Aji amarillo sauce is one of the easiest ways to bring real Peruvian flavor into your kitchen. It takes only a few minutes to make and goes well with so many foods. Once you try it, you will probably want to keep a jar of it in your fridge all the time.
Give this recipe a try and let it become a regular part of your cooking. It is simple, tasty, and a true taste of Peru.
More Peruvian Recipes on PeruvianSpice.com:
- Authentic Peruvian Ceviche Recipe
- Peruvian Beef Recipes (Lomo Saltado)
- Causa Rellena: A Traditional Peruvian Favorite
- Pan con Chicharron Recipe
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