Preheat oven to 350°F . Grease and flour a bundt pan (or spray with baking non-stick cooking spray: the kind with flour in it).

In a large bowl, mix together the cake and pudding mixes, sour cream, oil, eggs and water. Stir in the chopped chocolate and pour batter into prepared bundt pan. Bake for 45-50 minutes, or until a toothpick inserted in the center comes out clean. Cool cake completely in the bundt pan for about 90 minutes.

Invert onto a serving plate and drizzle with glaze. If desired, serve each slice topped with a scoop of vanilla ice cream.

Chocolate ganache glaze:

oz bittersweet chocolate, chopped (a little more than 1/2 cup)

½ cup heavy cream

Tbs corn syrup

Tbs granulated sugar

Place the chopped chocolate into a small bowl and set aside. In a Pyrex measuring cup or microwavable bowl, combine the heavy cream, corn syrup and sugar. Heat for 1 minute; stir. Pour the hot cream over the chopped chocolate. Let sit for one minutes, then stir until smooth with a whisk.

Use a spoon to generously drizzle the glaze over the cooled cake, allowing it to drip down the sides.