Place half of the marinade ingredients (except tempeh) into a large baking dish and stir to combine.
Cube the tempeh into bite sized pieces. Add to the baking dish and coat with the marinade.
Let the tempeh sit in the marinade for about 30 minutes. Stir again.
Set oven to 350° F
Place baking dish into the oven and cook the tempeh for about 20 minutes.
While the tempeh is baking, combine the other half of the marinade ingredients in a bowl.
Remove from baking dish. Use the remaining sauce to drizzle over the tempeh as it will have soaked up all the initial marinade.
We like to serve this tempeh as part of a Buddha bowl or just with some rice and greens.