Yield: 8
8 Ounces White chocolate, finely chopped
1 2/3 Cup Chilled whipping cream
1 Tablespoon Key Lime zest
4 Ounces Dark Chocolate, finely chopped
8 3 ½ x 7 inch pieces of clear acetate
To prepare the White Chocolate: Stir white chocolate and 2/3 cup cream in heavy medium saucepan over low heat until chocolate is melted. Transfer chocolate mixture into a large bowl. Let stand until mixture is cool and starts to thicken, stirring occasionally.
To prepare the Chocolate Towers: Melt the dark chocolate in the microwave on medium high. Stir and let cool for a few minutes. Pour about a tablespoon of the chocolate on to each acetate strip. Using an offset spatula spread the chocolate into a thin layer just to cover the strip. Roll each strip individually into a circle- forming a tower. Use a small piece of clear tape to secure the end together. Place on a tray and refrigerate until firm.
To Finish the Mousse: Beat remaining 1 cup of cream in medium bowl until stiff peaks form. Add the key lime zest and fold into cool chocolate mixture in 2 additions. Pour into the prepared chocolate towers and refrigerate for at least 2 hours.