According to Fun 2, this recipe should be discover in a Moonshine camp random event ! but it's already bugged !
"I found the issue, so basically, this random event is supposed to have one hour cooldown whenever you complete any moonshine activity (includes raids, setup missions, sell missions ..etc)
The cooldown is supposed to be 3600000 milliseconds which is one hour, but the game is reading that as 3600000 seconds which is one month.
It should be fixed very soon whenever the developers get back on office."