1 cup all-purpose flour
1 cup plus 2 tablespoons sugar
3 1/2 teaspoons baking powder
1 teaspoon salt
2 cups graham cracker crumbs
Peanut butter (at least 1/2 cup; if using more, decrease shortening by an equal amount)
3/4 cup shortening
1 cup plus 2 tablespoons milk
1 teaspoon vanilla extract
3 eggs
2 cups confectioners' sugar
2 tablespoons cocoa
8 tablespoons (1 stick) butter
1/3 cup heavy cream
1/2 cup peanuts, salted
2 cap-fulls vanilla extract