"Tengen-hikki" (a document written in the Meiji period) describes it as being stuffed with rice and tofugara (the material left after making tofu) etc., and eaten with soy sauce and Japanese horseradish, and there is also a comment 'very cheap.'
『天言筆記』（明治成立）には飯や豆腐ガラ（オカラ）などを詰めてワサビ醤油で食べるとあり、「はなはだ下直」ともある。