It is a tad on the richer side, and a little goes a long way. You really can't go wrong with chocolate and peanut butter, it is such a great combo, but it will make you feel sick if you eat too much. I decided to go with the Not Without Salt version of the pie as it looked a little more like mousse than a dense filling. Here is the recipe:
8 ounces chocolate cookies (I used Newman's Cookies and cut out the cream filling)
4 tablespoons butter, melted
2 ounces finely chopped bittersweet chocolate
1/4 cup chopped peanuts
1 1/2 cups heavy cream
5 oz mascarpone
3 oz sour cream
1 cup creamy-style peanut butter
1 cup confectioner’s sugar
1 – 14 ounce can sweetened condensed milk
1 teaspoon vanilla extract
¼ teaspoon salt
Pre-heat the oven to 350*
Add the cookies to the bowl of a food processor and pulse into fine crumbs. Combine melted butter and cookie crumbs in a small bowl, and stir with a fork to mix well. Press mixture into the bottom and pie pan. Bake the crust for about 15 minutes, until set and crisp. Add the chocolate to the warm crust and let the residual heat melt the chocolate. Spread the chocolate with a spatula and sprinkle the peanuts on top.
Place pan in the refrigerator while you prepare the filling.
Pour the heavy cream into a bowl and beat using a stand mixer or hand mixer until stiff peaks form. Transfer to a small bowl and store in refrigerator until ready to use. Place the mascarpone, sour cream and peanut butter in a deep bowl. Beat on medium speed until light and fluffy. Reduce speed to low and gradually beat in the confectioner’s sugar. Add the sweetened condensed milk, vanilla extract and salt. Increase speed to medium and beat until all the ingredients are combined and filling is smooth.
Stir in 1/3 of the whipped cream into the filling mixture (helps lighten the batter, making it easier to fold in the remaining whipped cream). Fold in another ⅓ of the whipped cream. Reserve the remaining whipped cream to top the pie. Pour the filling into the prepared pie pan. Refrigerate for three hours or overnight before serving. Serve with remaining whipped cream.