Peanut Butter Mousse Cake     
Posted by: Sugar Bear Mon, 9 Feb 2004, at 6:43 a.m.
Source: Mr Food

Who doesn't love chocolate and peanut butter? A light and fluffy cake topped with a chocolate chip "frosting" is a fabulous surprise for that peanut butter lover's birthday. Allow 4 hours for chilling time.

2 cups chocolate sandwich cookie crumbs
3/4 cup chopped peanuts, divided
2 tablespoons butter, melted
2 cups heavy cream, divided
2 cups creamy peanut butter
2 packages (8 ounces each) cream cheese, softened
2 cups confectioners' sugar
2 tablespoon vanilla extract
1/4 cup sugar
1 cup semisweet chocolate chips

1. Preheat the oven to 350°F. In a medium bowl, combine the cookie crumbs, 1/2 cup peanuts, and the butter; mix well. Press into the bottom of an ungreased 10-inch springform pan. Bake for 15 minutes; let cool.
2. In a medium bowl, beat 1-1/2 cups heavy cream until stiff; set aside.
3. In a large bowl, beat the peanut butter and cream cheese until smooth. Stir in the confectioners' sugar and vanilla; mix well. Fold in the whipped cream and pour into the cooled crust. Refrigerate for 2 hours, or until set.
4. In a small saucepan, combine the sugar and the remaining 1/2 cup heavy cream over medium heat. Stir until the sugar dissolves and the mixture comes to a boil. Remove from the heat and add the chocolate chips. Mix until the chocolate chips are melted and the mixture is smooth. Cool for 3 to 5 minutes then spread evenly over the peanut butter mixture.
5. Sprinkle with the remaining 1/4 cup peanuts. Cover and chill for at least 4 hours, or until set.