Place tofu in blender or food processor. Blend until smooth.
In a double boiler, place 1 inch of water in the bottom of the pot and bring to a boil, reduce heat to a simmer. Place the top pan over the simmering water, and place chocolate chips, cocoa powder, and milk into pan. Stir until completely melted and smooth. Remove from heat and let chocolate mixture cool slightly (3-4 minutes).
Add chocolate mixture to blender along with stevia and blend until smooth. Divide into 5 small cups and place in fridge. Let sit for 1 hour before serving. Serve with a dollop of whipped coconut cream, if desired. Enjoy!