The thing people outside of Cheonan often call “Cheonan Walnut” is called Gwangdeok Walnut by local,s because Gwangduk is the place where most walnuts grow in Cheonan. Gwangdeok is also where the first walnut tree in Korea was planted in 1290. As you might know, Cheonan Walnut Snack is popular all over the country. But it doesn’t necessary means Gwangdeok Walnut is equally famous. Because of the limited production of Gwangdeok walnut, the walnut pie vendors and shop owners find it difficult to use the particular walnut.