Did you let the butter mellow out before trying on toast or tried it on the same day you smoked it?Hello.
Just like to add that I find butter doesn't need more than about 2 hours in the cold smoker.
Yes, it's pretty nasty on toast or in a sandwich, but is is totally awesome when coating baby new potatoes, smeared onto corn on the cob, or mixed with garlic and herb and used on top of a steak.
I mean REALLY amazing!