My wife loves bacon that's cooked to the cusp of burning, so I've got a good knowledge of the properties of bacon on that fine line. It's so brittle, you can powder it very easily.

I myself would probably just stick it in a plastic bag, and whack it a few times with a pan, but I don't see any reason why you couldn't put it in the blender. I have a nice mortar and pestle I use for powdering things, but that's probably overkill in this case.