Black currant

In the freezer - a bunch of frozen berries. Wanted something with a black blueberry. Thus was born this lovely cake, which could not "right" to call. Options - "Tag", "vitamins", "jumble". Came home from work, a spouse and everything in its place: the cake - it's good that he's not one for dinner - even better, and to call him should "Kaleidoscope". The cake lived a life of bright but short-lived. Received orders to cook this often. So be it!