In the chapter November 9, 1446 of "Gaun nikken-roku" (the Diary of Zuikei SHUHO of Shokoku-ji Temple, the Gaun Mountain person), it was written that rice-cake sweets without water added, eaten by the Chinese barbarians are called Tang's hill and water, however, the relationship to 'karasansui' is not well understood.
『臥雲日件録』の文安3年10月12日(旧暦)（1446年10月31日）の項に中国の夷人が食す水を入れない餅菓子を唐山水と呼ぶ記述があるが、それとの関係もよくわかっていない。