It seems Joypolis is back in action, with this offering of neatly packaged chocolate sponge cake. The cake is pre-cut into cubes and shown with a little pick like object on top, presumably for getting it out. It is supposed to be good chilled. The old running Sonic stock art has been updated and used on the box. Plushes are shown with the item, to give an idea of the size.
There's also this slightly newer chocolate cake box. It's likely the same chocolate cake but in a newer more modern packaging.