Step 1: Make the Filling

• In a large mixing bowl, whisk together pudding mix and cold milk for 2 minutes until it thickens.

• Gently fold in the whipped topping until smooth and fluffy.

Step 2: Layer the Cake

• In a 9×13-inch baking dish, arrange a layer of graham crackers to cover the bottom (break as needed).

• Spread half of the pudding mixture over the graham crackers.

• Add another layer of graham crackers, then the remaining pudding mixture.

• Finish with a final layer of graham crackers on top.

Step 3: Add the Chocolate Frosting

• Microwave the frosting (uncovered) for about 15 seconds to soften slightly—just enough to make it spreadable.

• Spread evenly over the top graham cracker layer.

Step 4: Chill

• Cover with plastic wrap and refrigerate for at least 6 hours, or preferably overnight, to allow the layers to soften and meld.