I would recommend this reference to try replicating the cigar you spoke of.
http://cigarsecrets.com/create-your-own-flavored-cigar/
If you hate clicking on links here is the paragraph along with some comments from the article.
Just take a few mild smokes (no maduro’s) and put them in a tight sealing container (no need for a humidor for this one). A tupperware bin works great.
It needs to be large enough to hold the cigars and a shot of your favorite alcohol (brandy and cognac work very well).
Put the shot glass in the container (DON’T pour it on the cigars) you just want the liqueur to evaporate.
That is it. Seal the container and put it in a dark place (the back of the closet it good). It should only take a couple weeks for the liqueur to evaporate. You are ready to smoke! Enjoy!
***Best Comment***
The method that seems to yield the best results is a slightly tweaked version of the ‘shot glass in the Tupperware ‘ technique. I place several mild cigars across a small metal cooling rack that fits inside a Tupperware container. Instead of putting my liqueur of choice in the shot glass, I pour a generous amount in the bottom of the Tupperware, to a level just below the elevated cigars. The evaporation process takes less time and creates a more robust and even flavor. For a chocolate taste try Crème de Cacao liqueur, white or dark. Both provide a rich flavor, though dark seems to be more distinctly chocolate.
Maybe infuse with Both Bacardi then the Crème de Cacao.
Good luck! And let us know how your search goes!