What would you say is covering the top of this donut-like pastry?
Personally, when I first bit into one of these I was very unsurprised to find that it was filled with whip cream, but very surprised to find that what I took for chocolate frosting was in fact a kind of bean jam, a thin layer of youkan (羊羹) to be precise.
They are actually quite delicious so my initial surprise quickly turned to enjoyment. However, I think they tastily illustrate an important point: things aren’t always what they appear to be. You can look at something and be 100% sure that it is a chocolate doughnut. If someone asked you you would even say, “Yeah, that’s a chocolate doughnut,” never realizing that you were wrong in a small but significant way.
Looks can be very deceiving. Until you’ve fully tasted what you’re talking about, it might be better to be reserved in your opinions.