Whisk ingredients together and put in a 9×9 or pie pan.
Place Tempeh or Tofu into marinade, let soak up marinade for 10 minutes, flip and spoon the marinade over the Tempeh/Tofu and let sit for an additional 10 minutes.
Bake in oven for 30 minutes at 300, flip and bake for an additional 15-30 minutes. See images – your Tofu will brown and puff up, Tempeh will also brown. May require a few more minutes.
You can use the hot-out-of-the-oven Tempeh/Tofu immediately for a sandwich, or you can cool it and use it later for a sandwich or stir fry.