Add the ingredients for the cake in a large bowl and using either a stand mixer or hand mixer, and mix until everything is combined.
Pour batter into prepared bundt pan that's been sprayed with non-stick baking spray and bake for 50-55 minutes.
When done baking, remove cake and allow to cool in pan for up to five minutes.
Run a knife along the edges of the cake pan to help release the cake and then carefully turn the cake out onto a cooling rack.
Cool for 30 minutes more.
For the Homemade Chocolate Glaze
Place heavy whipping cream in a microwave safe bowl and heat on high for two minutes or just until the heavy cream begins to boil.
Remove the bowl from the microwave and carefully add the chocolate morsels.
The mixture may bubble up, this is okay!
Let the mixture sit for 5 minutes and then begin to whisk until shiny and smooth, about 1 minute.
At first it may look like the glaze is not going to get smooth. But keep stirring and it will come together.
Pour over cooled cake and allow the glaze to drizzle down the sides of the cake.
You can serve it right away or allow the glaze to cool.
Video
Notes
Ignore the Box Instructions: Do not follow any of the instructions on either the cake mix box or the brownie mix box.Use a Bundt Pan: Opt for a 10–12 cup capacity Bundt pan to give the cake a beautiful shape and ensure even baking.Bake and cool properly: Start checking for doneness at 45 minutes, let the cake cool fully before glazing, and heat the cream just until steaming—not boiling—for best results.Make it your own: Add toppings like nuts or sea salt after glazing, save extra ganache for ice cream, and freeze leftovers for up to three months.