For the graham cracker crust. Preheat oven to 325F. Mix the graham crumbs with the ground almonds. Melt the butter and add, mixing well. Press into a the base of a 9" pie plate. Bake in the oven for 10 min. Cool.

In a small bowl whisk together the cornstarch, salt, 1 cup milk, egg yolks and vanilla until smooth, set aside.

Heat the remaining 3 cups of milk, butter, peanut butter and sugar in a medium saucepan until just before boiling. Add a cup of the hot milk mixture to the cornstarch mixture, slowly while whisking and then add it to the rest of the hot milk, slowly while whisking. Continue to heat until mixture thickens. Remove from heat and let cool and then chill with plastic wrap directly onto the pudding to prevent a skin.

Mix powdered sugar and peanut butter together using a mixer until crumbs form.

When pie crust and pudding is cooled, add a layer of crumbs to the crust, reserving just over half. Add the pudding into the pie shell. Place on another layer of crumbs, reserving some for the topping. Top with the whipped topping and the reserved crumbs. Let cool further and then serve.