This is an enemy trick that uses an onion as a container spell, to cause your enemy’s mind to be confused (to “run them crazy”) or to break up a couple. The informant was Miss Ida Bates of New Orleans, recorded in Vol. 2, p. 1659.
You get one dirt dauber’s nest tube and powder it. Get a red onion – you’ll need to load it with materials, so you might want to cut it in half and remove a couple of layers from the center, or cut the top off and scoop out some of the inside, though the informant does not detail the cutting or stuffing. Inside the onion you put your target name(s) — presumably on a name-paper — and add bluestone (use laundry bluing, the anil balls or the bluing squares), cayenne pepper, and a good pinch of the dirt-dauber nest. If you want to break up a couple, put their names on separate pieces of paper and stick those in there. The informant doesn’t specify, but if you have cut the onion in half, you’ll need to stick it back together; it would be ok to use thread or string to tie it shut. If you just took the top off and scooped some inside it, then you can just set the “cap” back on top. Then, the informant says, “And [put] the onion under the dirt dauber. And just the way that wasp hums, wanders around, circles around, that’s just the way those people mind will be.” She doesn’t specify exactly how to do this, but you could put it in a box or cup and cover it with the rest of the dirt dauber nest powder, or you could bury it and cover it with the dirt dauber nest. (That’s what I would do.)
This is an enemy trick – the informant says this is for a person “you want to be evil against” — so you need to do proper spiritual cleansing after performing this trick.