Onigiri (Rice balls): What is the filling?

Most people eat rice as a staple food in Japan, we have many kind of rice dishes. “Onigiri” (おにぎり) is one of them, rice balls, usually with a filling. They are very portable, and therefore are very popular for carry-along lunches since olden days. 　 　 You can see many kind of “Onigiri” at convenience […]

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