Chocolate Crumb Crust – 1 ⅓ cups graham cracker crumbs* (170 grams or 6 ounces) – ¼ cup cocoa (25 grams or 1 scant ounce) – ½ cup unsifted powdered sugar (55 grams or 2 ounces) – ½ cup unsalted butter, melted (114 grams or 4 ounces) – *Buy them in crumbs or run crackers through food processor Peanut Butter Filling – 1 ½ cups creamy peanut butter (340 grams or 12 ounces) – ½ cup unsalted butter, very, very soft but not runny (114 grams or 4 ounces or 1 stick) – 1 pound powdered sugar (454 grams) – 2 teaspoons vanilla – ¼ cup heavy cream Chocolate Topping – 8 ounces semisweet chocolate (225 grams) – 2 tablespoons shortening