This recipe reminds me a lot of the old Big Boy's peanut butter ice cream pie. It was my favorite dessert they had. (besides the hot fudge ice cream cake, that is.) Now I can make it my own. This recipe came from one of the Southern Living annual cook books from the 1980's, though I'm not sure of the exact one. I did change it slightly as the original recipe called for simply freezing the pie for 8 hours, and a drizzling of chocolate syrup over the top just before serving, but everyone in my family agrees that it's better with hot fudge spread over the top.