Inca's Foods Aji Amarillo - Yellow Hot Pepper Paste is high in vitamin C and antioxidants with a bold and spicy flavor !! Unique hot pepper grown in the Andes. Great for sauces and to kick up any meal with a great flavor and medium heat. Aj Amarillo, or yellow pepper, is probably the most common variety of pepper in Peru. It is used to flavor many different dishes including lomo saltado and causa.