Preheat your oven to 350 degrees and thoroughly coat a bundt pan with nonstick spray.
In a large mixing bowl, combine the chocolate fudge cake mix, instant chocolate pudding mix, sour cream, vegetable oil, eggs, and warm water. Mix thoroughly until well combined.
Add 1 1/2 cups of chocolate chips to the batter and gently mix them in.
Pour the batter into the prepared bundt pan and bake for 25-30 minutes, or until the top of the cake is springy to the touch.
Allow the cake to cool completely in the bundt pan for approximately 1 hour.
Turn the cake onto a plate, putting the flat side down to get it ready for glazing.
To make the chocolate glaze, melt the semi-sweet chocolate chips, butter, and corn syrup together in a microwave-safe bowl. Microwave in short intervals, stirring until smooth. Be cautious not to overheat.
Spread the warm chocolate glaze over the top of the cooled cake, allowing it to drizzle down the sides.
Optionally, add extra chocolate chips on top for decoration.
Your yummy Too Much Chocolate Cake is now ready to be enjoyed.