Mocha Cream Delight

1 tablespoon good-quality unsweetened cocoa powder plus extra fro decoration

2 tablespoons very strong coffee (liquid)

Sweetener equivalent to 6 teaspoons sugar or to taste

1/2 teaspoon vanilla extract

1 cup (8 oz) heavy cream, chilled

Dissolve the cocoa powder in the coffee.  Add the sweetener and vanilla. Refrigerate until cool. Whip the cream. Add the cocoa and coffee mixture and whip again until stiff. Spoon into demitasse glasses and chill well. Before serving, sift a little extra cocoa powder over the top.  Serves 4.