Good For You Dark Chocolate Mousse

1 (12.3-ounce) package silken tofu, drained
3 ounces high quality bittersweet chocolate,
finely chopped 1/4 cup unsweetened cocoa powder, preferably Dutch-processed
1/4 cup water
1 1/2 teaspoon vanilla
1/2 cup plus 1/2 teaspoon superfine sugar
1/4 cup heavy cream
1 1/4 teaspoons shaved chocolate

In a blender or food processor, puree the tofu until it is smooth. Put the chopped chocolate, cocoa powder, and 1/4 cup water in a saucepan or heat-proof bowl fitted over a pot containing 1-inch barely simmering water. Stir frequently, until melted and smooth. Remove from heat. Mix in vanilla and 1/2 cup of sugar, a little at a time, until smooth. Add the chocolate mixture to the tofu and puree until smooth and well blended. Spoon the mousse into serving dishes, cover and refrigerate for at least 1 hour. Whip the cream with a beater. When the cream is almost completely whipped, add the remaining 1/2 teaspoon of sugar and finish whipping. Top each serving with a dollop of whipped cream and a sprinkle of chocolate shavings and serve.