Followed this recipe to a T. Which is rare, for me.
Secret random ingredient?
Vanilla pudding mix.
Vanilla pudding mix.
Other not-so-secret ingredient? ALL. OF. THIS. BUTTER...
Yep, all of it. Probably the least healthiest thing I've ever made. But daaaannnng, are they good. And Russian butter?! Found it in this big block at a Japanese food store. Go figure.