I realize that nothing tastes like bacon but I am a tempeh maker and have recently bought a cookshack smoker to make tempeh bacon. I have tried soaking the fresh tempeh in olive oil and then a marinade overnight. Mixed the marinade with oil, used veganaise to try to get it fatty (I think it needs fat). I have even put some xanthum gum in the mix which seems to work in keeping the marinade on the tempeh. Also the smoke gets stronger the next day and over powers the flavor. Realizing that some of you might think it sacreligous to make anything but pork taste like bacon, think of the poor vegetarians that are missing all the fun.