In separate bowl, combine chopped chocolate with whipped cream, peppermint extract and corn syrup. Heat in microwave or double boiler until smooth to form a ganache.
Drop in dollops of the ganache on top of the cake batter, then sprinkle with chopped Peppermint Bark.
Swirl everything into the cake batter.
Bake for 35-40 minutes. Tip: When finished baking, the centre of the cake should look dry but still wobble a bit.
Allow cake to cool completely before cutting and serving with whipped cream.
