Cut the tofu in cubes or 1/4” slices.
Mix the sesame oil, grated ginger, Tamari and water in a bowl. Pour over tofu and allow to marinate several hours or overnight.
After marinating, preheat over to 350 degrees F. Place in a pan and sprinkle with sesame seeds.
Bake at 350 degrees F for 45 minutes to an hour, depending on your preference for softer or chewier tofu.