Although this pepper is literally named "yellow chili pepper," its color changes to a bright orange as it matures. The chili pods have a thick skin, are 4 to 5 inches long, and are considered hot (it is 30,000 to 50,000 on the Scoville Heat unit scale). But the aji amarillo balances that heat with a bit of fruity flavor. Smelling a bit like a raisin, this chili's taste is somewhat subtle with hints of passion fruit and mango, imparting a unique flavor to any dish.