Originally from Japan, the Santaka pepper is widely used in Asian cuisine such as stir-fries and soups as its smoky flavor and spicy heat level make a delicious combination. The peppers are about 2 inches long and are mirasol, meaning they are grow pointing upwards and are “looking at the sun.” Santaka peppers, which average 30,000 to 50,000 Scoville Heat Units, can be used fresh or dried. They are closely related to Thai peppers.