I've never had one before, I guess I'd try at least one. Eat.
Sorry, I just thought it was known well enough by that name. Wikipedia tells me that what I'm thinking of is corned beef and silverside actually refers to the cut.
That said, corned beef?
Drink if you're referring to the beverage, spit if you're just referring to an ordinary bar of chocolate which just happens to be hot. That stuff's just messy and not worth the trouble of eating.