Farmers living in and around Soka-juku used to make a kind of snack eaten between meals - making balls of crushed cooked rice, which were then dried, sprinkled with salt and grilled, which they called 'katamochi'.
草加宿一帯の農家では、蒸した米をつぶして丸め、干したもの（「堅餅」という）に塩をまぶして焼き、おやつとして食べていた。