Preheat the oven to 325 degrees F and grease a 9 X13-inch baking pan
Combine the Super Moist Chocolate Milk Chocolate Cake Mix, the butter, and the eggs in the bowl of a standup mixer and mix on low speed until combined
Add the water and mix on low speed until combined
Add the chocolate pudding mix and mix until smooth
Pour the batter into the prepared baking pan and use a rubber spatula to smooth into an even layer
Bake the cake for 35 minutes or until a toothpick inserted into the center comes out clean
Remove the cake from the oven and, using a fork, poke holes throughout the cake
Whisk together the milk and the½ pack of chocolate pudding mix until homogeneous
Pour the milk mixture evenly over the entire cake
Pour the Hershey’s Hot Fudge Topping over the cake, spreading with a rubber spatula for even distribution
Allow the cake to cool completely
In a large bowl, gently fold the remaining half (the rest is in the milk mixture,remember?) of the chocolate pudding mix into the Cool Whip until you achieve a consistent color throughout
Add the milk and stir gently until homogenous
Using a rubber spatula, spread the chocolate Cool Whip topping evenly over the cake
Top the cake with the shaved chocolate
Cover the whole kit and caboodle and place in the refrigerator for at least 4 hours before serving