To make chocolate filling: cream butter and 1/2 c. sugar. Add egg, beat 2 3 minutes. Blend in chocolate. Spread 1 cup of the mixture over baked crust. Set aside remaining chocolate mxiture. Sprinkle 1 cup peanuts over chocolate mixture.
For peanut filling: Combine cream cheese, peanut butter, powdered sugar and egg. Fold in whipped cream, spoon over chocolate filling.
Spread reserved chocolatge mixture over peanut illing to within 2 inches of edges. Sprinkle one half cup peanuts around outer edge of pie. Refrigerate.