Slice your tofu into four even slices.

Wrap the slices in a clean dish towel, or paper towels, to absorb excess water. Let it sit, pressing lightly, for about 10 minutes.

Place slices in a freezer bag or other container. Freeze at least overnight, until frozen solid. You can leave it in the freezer for as long as a few weeks.

Take out as many pieces as you want. Place in a deep plate or shallow bowl, to catch water.

Microwave 2 minutes. Turn, microwave another minute. Let cool.

Pour cold water over the tofu to cool it enough to handle it. Carefully squeeze out as much water as you can. You should get something that resembles a cellulose sponge.

Your tofu is now ready to cut up, marinate, and use!