Mash tofu well. (For optimal results, blend a firm Chinese style tofu with a smaller portion of Japanese style, such as Mori-Nu Firm.) Mix tofu with all ingredients except tamari, sesame oil and dressing. Line an 11-inch colander with a single layer of moistened cheesecloth. Transfer tofu to colander. Press tofu to flatten, and fold edges of cheesecloth over it. Place a cake tin or other flat object over the surface of the tofu and weigh it down with a heavy object (about 5 lbs) to press the liquid from the tofu.