I completely forgot to post this review! I took the pictures and at the chocolates in February, and must have moved on immediately. Here I was thinking I'd gotten caught up. Well, better late than never (even though these aren't available anymore).
These were a limited edition winter flavor of Takenoko no Sato, and were larger than the normal size (but it's hard to tell from the picture I took). Each one was individually wrapped, which made it easier not to eat a whole box at once. In Japanese, the cookie portion of this sweet was called horoniga, which means slightly bitter.
The snack smelled like hot chocolate, with a hint of what smelled like hazelnut but was probably the macadamia nut bits. The cookie part tasted very nutty, and had a good crunch. I don't remember if the bitterness came into play at all, but they were not too sweet. The chocolate was smooth and buttery, making for a rich treat.
I think I prefer the normal, smaller size, as these were a little much for me. There's something magical about the texture combination of the regular size which doesn't carry over to the larger size (although I can't say for sure since, to my knowledge, there is no regular size in this flavor). Still, they were quite good and disappeared quickly when I put the leftovers in my candy dish for friends.
Meiji Website (Japanese)