( Any house blend will do, just don't use a flavored coffee.)
Follow the directions on the package for preparing the vanilla pudding: add 2 cups of cold milk and pudding mix in a bowl and whisk for two minutes.
In a separate bowl, prepare the chocolate pudding. The directions call for 2 cups of milk. Instead, put in 1 1/2 cups of milk and 1/2 cup of chilled coffee and pudding mix in a bowl and whisk for two minutes.
Transfer about 4 tablespoons of the vanilla and 4 tablespoons of the chocolate pudding to a third bowl. Add 2 more tablespoons of coffee to this batch. Whisk this batch. It should appear a few shades lighter than the chocolate pudding's color. Drink the remainder of the coffee.
Layer in cups or parfait glasses. Refrigerate for five minutes. Garnish with whipped cream before serving.