6 x 15 tea temples
Back in the day, green tea was rather expensive and too pricey for your average Japanese peasant, so to make it go further they'd mix it with grains of toasted rice. From such humble beginnings has grown a tea that, in today's Japan, is celebrated in its own right as Genmaicha tea or, to its friends, Popcorn tea. The British equivalent would probably be something like bubble and squeak, although obviously not recommended for use in teapots.
Green tea with a popcorny, almost nutty undertone. Sugar Puffs in a cup, its truly unique.