Bake cake as directed on the package in a 9 x 13 inch pan. Cool and pierce all over with a fork. Pour 1/4 cup Vandermint over cake for 4 days in a row. Eliminate this step if not using the cordial. On the day of assembly, cook and cool vanilla pudding. Whip heavy cream, sweetening to taste with confectioners' sugar. In a large glass bowl, put in a layer of chocolate cake that has been cut into small squares. Pour some vanilla pudding over cake layer. Spread with a layer of whipped cream. Sprinkle with crushed candy canes. Continue to add layers until the bowl is filled, ending with the whipped cream layer. Garnish with crushed candy canes.