Aji Panca chili paste, a moderately spicy pepper used in traditional Peruvian cuisine.One of the most common types of aji in peru, aji panca is 3 to 5 inches in length and has a thick flesh that matures from a green to dark red in color. Distinct from the other ajis in its spiciness, aji panca is mild in heat intensity and provides a fruity, berry-like flavor that goes well in stews, sauces and fish dishes.