I've never tried anything like this but I personally don't think it would work. Weed has to be soaked in butter for the thc to be removed from the weed. You may be able to just throw groud up weed in the bread, but I don't imagine it would taste very well. I know there are recipes to cook things like cakes ect in crock pots, so I'm sure you could do the same thing with a bread maker!