It’s another form of Sterno only more explosive!
Sterno was my first thought, too. Because alcohol seems to burn without much of a visible flame, you could never be sure it was lit unless you waved your hand over it and felt heat.
This one is odd, because evidently the substance wasn’t provided in a finite quantity in a little can, like Sterno, but you had essentially a jug of Sterno and could slop more of it on any time you wanted to. Not a good idea.