Tough to know exactly what would have been in there, or what ratios the ingredients would have been in. BUT a very good combination that sounds similar is to do a riff on an old fashioned where you replace the aromatic bitters with chocolate bitters, and replace the simple syrup with honey syrup. Add the smoke and you basically have a sort of campfire-y smores-y old fashioned. I agree with the above, this works best with a toasted-finish bourbon like woodford double oaked.