Chocolate Meringue and Mint Chip Ice Cream Cake

Name: Chocolate Meringue and Mint Chip Ice Cream Cake
Yield: Makes 8 to 10 Servings
Ingredients: 10 1/2 tablespoons sugar, divided; 1/2 cup powdered sugar; 3 tablespoons unsweetened cocoa powder; 4 large egg whites; 2 pints mint chip ice cream, slightly softened; 1/2 cup chilled whipping cream; 1/4 teaspoon vanilla extract; 1/4 cup chocolate sprinkles