Drain the package of tofu and place the block onto a few paper towels, press lightly to drain out ALL the excess liquid.
Dump the tofu, soymilk, stevia and salt into a blender or food processor. Puree until smooth.
While the blender/processor is running, pour in the melted chocolate. Puree until mixture is even and smooth (scrape down the sides of the blender/processor bowl if necessary).
Scoop pudding into serving bowls, cover with plastic wrap touching the surface and refrigerate overnight. Serve the next day with some grated chocolate on top!