Does it look like this? I have some in my pantry now. (Don't tell anyone.)
By request, the box contents: inside a cellophane sleeve, 4 foil-wrapped cubes. Here's one:
Texture is very much like a boullion cube - hard, with a bit of sticky give when pushed. Salty, as expected, but also sweetish with a distinct flavor of caramelized onions and star anise.