Preheat the oven to 350 F (177 C). Generously grease a 10- inch (12 cup capacity bundt pan).

In a large mixing bowl, whisk the eggs, oil, sour cream and water together until well combined.

Whisk in the fudge chocolate cake mix and chocolate brownie mix into the wet ingredients until well combined.

Pour the brownie cake batter into the prepared pan.

Bake the chocolate brownie bundt cake for about 50-55 minutes. Remove the fudge cake from the oven to cool in the pan on a cooling rack for about 10 -15 minutes.

To remove, place a serving plate or even another cooling rack on top of the bundt pan. Invert the pan so the top of the brownie bundt cake is now on the bottom (on the serving plate or second cooling rack). Gently tap all around the pan to help loosen any pieces of cake that may be stuck. Gently lift up the pan.Allow the cake to cool to room temperature before applying the chocolate ganache.

Make the chocolate ganache by pouring chocolate chips and heavy cream into a microwave safe bowl. Heat the bowl for 20 seconds, remove from the microwave and gently mix the chocolate and heavy cream together. Repeat until all the chocolate has melted. Stir around the bowl in one direction until the mixture becomes thick and glossy.

Pour or spoon the ganache over the cooled brownie cake. The ganache will remain “wet” for a long time. Allow about 1 hour for the it to set enough to slice the cake cleanly. Slice and enjoy!