What do kosher potheads, a Los Angeles weed entrepreneur, and a somewhat unorthodox Texas rabbi have in common? It’s not a setup for a joke but a Talmud-level riddle Roxanne Dennant had to solve.

Dennant makes Fruit Slabs: all-natural squares of mango, strawberry, and such that are, like seemingly everything else these days, weed-infused and touted as “healthy” edibles. But she had a problem. “Some Jews keep Shabbat to the degree that they will not light a lighter,” Dennant, who is Jewish, says. “They rely on edibles if they want to [indulge] during the Sabbath.” And therein resided her problem: she needed to get a rabbi to certify her product as kosher.