In a bowl, combine the small box of vanilla pudding mix with the seven point five ounce can of Doctor Pepper.
Gently fold in half a cup of your favorite milk.
Stir in eight ounces of frozen whipped topping until the mixture is well blended.
Pour the filling into a graham cracker crust, whether homemade or store-bought.
Place the pie in the freezer for at least five hours, or until you're ready to enjoy it.
Before serving, top the pie with whipped cream and garnish with maraschino cherries.
