Preheat oven to 350°F. Spray a 10-inch Bundt Pan with nonstick cooking spray.
To a large bowl, add cake mix, brownie mix, eggs, water, and oil. Whisk for 2 minutes, or until lumps are mostly gone.
Pour the batter into the prepared bundt pan. Bake for 50-55 minutes, or until an inserted toothpick comes out with a few crumbs, but no wet batter.
When done baking, remove the cake from the oven and allow it to cool in the pan for up to 10 minutes. Then, carefully turn the cake out onto a cooling rack and cool for about 30 more minutes.
To a microwave-safe bowl, add whipping cream. Heat for 45 seconds to a minute, or until the cream is simmering.
Carefully pour the chocolate chips into the boiling cream.
Let sit for 5 minutes. Whisk the chocolate and cream until shiny and smooth, about 1 minute.
Pour over cooled cake and serve.
How to Transport Cake
This is a great cake to make and bring along to share. Here are some tips to consider when transporting:
Chill your cake before transport. I will place mine in the refrigerator overnight or in the freezer for a few hours before it goes in the car. A firm cake slides less and can handle more bumps and turns than a freshly baked cake does.
Use a cake carrier. Just plan ahead if this is your chosen method of transport, as there is a certain height the cake needs to be to fit in the box. I have run into an issue with just a 2-layer cake that has piped dollops on top getting squished in a cake carrier. You can find extra tall cake carriers online if you know you love piping and decorating!
Try a box for your cake, especially for long trips. My tips for that are to make sure the box is big enough, the box is lined with a shelf liner, and don’t forget about under the box! A great trick for that is a yoga mat right under the box.
My favorite trick is to set the cake inside a springform pan. This works best for cakes that are on plates or platters. I get my 12-inch round springform pan, set the cake inside, and then set the springform pan on a shelf liner on a flat surface in my vehicle. (Usually, the back or the floor since seats are too curved). When you arrive at the event you simply carry in the springform pan then remove the outer edge! This has worked brilliantly more times than I can count.