Not consumed yet, but my hubby got given some omiyage by some Japanese colleagues returning from a home visit, and I am sure it will feature at some point.
It's matcha (powdered green tea) Kit Kat. Knowing the rarity that I want something sweet, they will probably live in the fridge for the next year or so!
I find it quite amusing that it's marketed as "otona no amasa" (adult taste sweetness). I have some very nice matcha teabags that are marketed for babies somewhere!