To prepare a white chocolate mousse and kiwi sauce desserts recipe, first you need to prepare the ingredients. First, you will need the following ingredients: 12 cup (120 ml) chilled whipping cream 2 tablespoons (13 g) of confectioners' sugar 1 teaspoon (2.5 tsp) vanilla extract 1 tablespoon (0.5 fl oz) powdered sugar 2 teaspoons cocoa powder Instructions: Preheat the oven to 375 ?F (191 C) and line an 8x8x2 inch baking pan with foil. Set aside. Melt the chocolate in the microwave in 30 second increments, stirring constantly, until it's melted and smooth. Add the vanilla and beat the mixture with an electric mixer for 1 minute. Gradually add the sugar, beating well after each addition. Pour the mousse into the prepared pan and spread it evenly with the foil, making sure not to overcrowd the pan. Bake for 20 minutes or until the top is set and the center of the cake springs back when lightly touched. Let cool before cutting into squares.