Bethenny Frankel -- Puff, Puff, Pass the Skinnygirl Marijuana!

Like smoking weed but hate packing on the extra Funyun-induced pounds? Then Bethenny Frankel is about to become your salvation.

Yes, the woman who built Skinnygirl products into a multi-million dollar empire is now branching out into weed. Our sources confirm Frankel is working on selling a kind of pot that does NOT give you the munchies.

Frankel seemed to be doing market research last month in the Rockies when she was seen walking out of the famous Green Dragon Dispensary in Aspen. It's kinda like the Barney's New York of pot sales.

BF later tweeted, "OMG it's the craziest thing to see marijuana legal in Aspen. People walking into pot stores like it's the @Gap #prohibitiondone"

As first reported by Us Weekly, Frankel plans to peddle her buds in states where recreational marijuana is legal ... like Alaska, Colorado, Oregon and Washington.