What recreational drugs taste nice? That's what I'd like to know...
Amphetamines and methylphenidate taste much like shit.
Opiates all taste like shit.
Most benzos taste bad, with diazepam being fairly vile.
Alcohol is an aquired taste.
Nicotine isn't. There's no way it could be enjoyed (I do not mean cigarette smoke).
MDMA does taste disgusting, and I'd expect all PEAs to have a similar taste.
Dextromethorphan cough syrups are almost vomit inducing.
As for me, the Rivotril (not Klonopin) 2mg clonazepam pills I take taste minty. I'm rather pleased that 10mg kills two birds with one stone, by giving me fresh minty breath and also getting rid of any anxiety, inhibitions or fears I could possibly have.
The worst tasting class of drugs I've ever had to take would have to be antibiotics. Amoxicillin in liquid form, daily as a child, is almost as bad as flucloxacillin. Ciprofloxacin wouldn't be far behind.
I've had a lot of drugs, but none have made me wretch quite as badly.