In Japan there is yan-yan-tsuke-bō, but abroad there is this.
And now it comes combined with a drink!

I’m a bit surprised as this is really interesting.
Not because of the milk carton, which is nothing extraordinary.
Given the quality and potential of Japanese sweets, interesting ideas like this seem more than possible.
Like a sweet combined with ‘shio kombu’ (dried salted seaweed) and green tea!