Complex sentence: Unpolished glutinous rice can also be used to cook "bap," in which case it is called "hyeonmi-chapssal-bap" ("brown glutinous rice bap").
Split into simpler sentences: Unpolished glutinous rice can also be used to cook "bap". In that case, it is called "hyeonmi-chapssal-bap" ("brown glutinous rice bap").