Tofu and Napa Cabbage Stew

Cut cabbage into sections. Cut soft tofu into big cubes. Find a small pot, put the cabbage at the bottom, then layer the tofu on top of the cabbage. Add water to the pot until almost covering tofu. Add ginger, white pepper and salt. Boil the water, then turn down the heat, cover and simmer for 30 minutes. Turn off the heat and add a few drops of balsamic vinegar. (Optional: Add a few drops of sesame oil before serving.)