Ají (Andean sauce)

Uchu, or ají in the Spanish language of the Andes, belongs to the oldest preparations of Andean cuisine, well before the arrival of Europeans. Archaeologists have uncovered stone grinding slabs (batanes) and mortars testifying to a culture of ground chili pepper dating back several millennia, associated with pre-Inca civilizations and later the Inca empire itself. In Quechua households, this sauce accompanied nearly every meal, serving to enliven corn, potatoes, or Andean tubers, while salt and imported spices remained scarce. Its preparation, transmitted orally from mother to daughter, varied according to valleys, altitudes, and locally available peppers, giving rise to a constellation of regional recipes all derived from the same ancestral gesture: grinding fresh chili on a flat stone. Even today in many rural households, uchu is prepared daily, more as a living condiment than a preserved sauce. Still today in numerous rural homes, uchu is prepared fresh each day, as a living condiment rather than a preserved product.

• 4 to 6 fresh ají peppers (rocoto or ají amarillo depending on region)
• 2 garlic cloves
• 1 small ripe tomato (optional depending on variant)
• 1 sprig of fresh huacatay or coriander
• 1 finely chopped red onion
• juice of half a lemon or lime
• rock salt or grey salt
• a little cold water to adjust texture

1. Lightly roast the fresh peppers on a hot stone or griddle, then remove the seeds according to desired heat level.
2. Place the peppers with the garlic and salt on the batán, the flat grinding stone, and crush in a circular motion with the stone hand called uña until obtaining a coarse paste.
3. Add the tomato and fresh herbs, then continue grinding while gradually incorporating cold water to thin the sauce.
4. Incorporate the chopped onion and lemon juice, mixing by hand or with a wooden spoon without further crushing.
5. Let the preparation rest for a few minutes at room temperature before serving, so the flavors blend together.

Uchu is distinguished by an immediate spicy liveliness, tempered by the acidic freshness of lemon and the herbaceous note of huacatay or coriander. Its texture remains deliberately coarse and rustic, marked by pepper fibers and bits of garlic, far from smooth industrial sauces. The aroma, earthy and bright, evokes the stone itself and raw pepper rather than cooking.