Aji Amarillo Powder: The Andean Chili Pepper

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Aji amarillo refers to a type of chili pepper that is popular throughout the Andean region of South America, but that is most often used in Peruvian dishes. It could be considered one of the distinctive Peruvian ingredients and is thought to have originated there or in Bolivia and then was domesticated around 2500 BCE. The peppers are usually used fresh in Peru; the dried version shows up more often in Bolivian cuisine. 

Aji Amarillo belongs to the Capsicum baccatum species. The word aji has been used for members of the Capsicum baccatum species since 4600 BCE and comes from the Otomanguean language. Other chilies were called peppers by the conquistadors because they had a similar heat to black peppercorns. 

Some go as far as to call aji amarillo the most important Peruvian ingredient. The name translates to “yellow chili pepper” and is used because these peppers become a bright yellow when they ripen. When they are very ripe, they can take on a deep orange color. Aji amarillo powder is the dried and ground form of this pepper and is typically a deep yellow or orange color. The whole dried aji amarillo fruits used to make aji amarillo powder are sometimes referred to as aji mirasol or cusqueno. Other names include aji escabeche.  

Aji amarillo is cultivated in the United States, Australia, and India. 

Aji Amarillo Powder

Aji amarillo powder flavor profile

Aji amarillo has a robust fruity flavor note similar to that of scotch bonnet chilies or habaneros. Its heat is moderate; it comes at between 30,000 and 50,000 on the Scoville scale, which makes it similar in heat-level to cayenne peppers

Health benefits of aji amarillo

Like other members of the hot pepper family, the aji amarillo is a good source of essential nutrients. Some of those are retained even after the pepper has been dried and made into a powder. Those nutrients include:

  • Vitamins: Aji amarillo powder is a good source of vitamin A. It contains vitamin D in smaller amounts. 
  • Fiber: Like other ground chili peppers, aji amarillo contains healthy dietary fiber. 
  • Minerals: Aji amarillo powder provides iron, calcium, and potassium. 

With aji amarillo powder as a part of your diet, you may be able to treat or prevent diseases and health issues such as: 

  • Inflammatory diseases: Aji amarillo powder has several antioxidants that can relieve inflammation and alleviate health conditions such as Crohn’s disease and  
  • Heart disease: Studies suggest that the capsaicin in aji amarillo can prevent heart disease through several different effects, including preventing blockages by blocking a gene that causes arteries to contract. It also lowers blood pressure and cholesterol levels. 
  • Cancer: Capsaicin may induce apoptosis in prostate cancer cells, which means that it causes them to commit suicide. As a result, it may prevent the disease from returning. 

Common Uses

The so-called holy trinity of Peruvian cuisine consists of aji amarillo, red onion, and cilantro. These ingredients form the starting point for many dishes. You will find aji amarillo in numerous Peruvian preparations, including causa rellena and papas a la huancaina, both of which are Peruvian potato dishes. Aji amarillo powder can be used to season dishes consisting of root vegetables as well as in ceviche. Use it as an all-purpose source of heat the way that you would use cayenne pepper or chile de arbol powder.


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