PROBLEM TO BE SOLVED: To produce a horseradish simple substance having pungent taste, aroma and tint carried originally by Wasabia japonica, without adding a field crop or a food additive other than the horseradish.SOLUTION: Horseradish root powder (a) and horseradish leaf stalk part powder (b) which has been discarded frequently hitherto are mixed, and water is added thereto and kneaded, to thereby obtain pungent taste, aroma and tint without adding a field crop or a food additive other than Wasabia japonica.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】西洋ワサビ以外の農作物や食品添加物を入れることなく、ワサビ本来の辛味、香り、色合を西洋ワサビ単体で製造する。【解決手段】西洋ワサビ根部粉末(a)と元来廃棄されることが多い西洋ワサビ葉茎部粉末(b)を混合させ水分を添加して練ることでワサビ以外の農作物や食品添加物を入れることなく辛味、香り、色合が出せる。【選択図】図1