This chocolate brownie cake is rich, fudgy, and made with a box of devil's food cake mix and a box of brownie mix. It bakes up in a bundt pan and gets topped with a smooth chocolate ganache. It's an easy, crowd-pleasing dessert with deep chocolate flavor.
Preheat oven to 350°F. Grease a 12-cup bundt pan with shortening or butter, then dust with unsweetened cocoa powder. Set aside.
In a large mixing bowl, add the cake mix, brownie mix, eggs, milk, and oil. Use an electric mixer to mix the batter together until smooth, scraping down the sides of the bowl to make sure all of the dry ingredients are incorporated.
Pour the batter into the prepared pan, and bake for 50-55 minutes, or until a thin knife inserted into the middle of the cake comes out clean or with a few tiny crumbs.
Rest the cake in the pan for 30 minutes before inverting it onto a large platter or cake stand. Allow the cake to cool completely.
Ganache:
Pour the cream into a small, microwave safe bowl, and heat it in the microwave in increments of 30 seconds until it starts to steam, about 1 minute.
Add the chocolate chips and corn syrup, and let the mixture rest for about 2 minutes. Stir until the ganache is smooth, then pour it over the top of the cake evenly.
Let the cake rest for about 30 minutes so the ganache will set, then serve at room temperature. Store in an airtight container in the refrigerator for up to 4 days.
Notes
Let the cake cool completely before adding the ganache so it doesn't slide off.
Let the chocolate chips sit in the hot cream for 2 minutes before stirring for the smoothest ganache.
The corn syrup is optional but adds shine.
Store in an airtight container in the refrigerator for up to 4 days.