1-First Steps: Gather all your ingredients and chill the milk ahead for the best pudding texture. This step ensures everything mixes smoothly, setting the stage for a dessert that yields about 20 servings. Once ready, your work surface should be clear to make layering effortless.

2-In a large bowl, whisk the instant vanilla pudding mix and cold milk until it thickens, about 2 minutes.

3-Fold the thawed whipped topping gently into the pudding to create a smooth, fluffy filling.

4-Arrange a single layer of graham crackers evenly in the pan.

5-Spread half of the pudding mixture over the crackers.

6-Add another layer of graham crackers and cover with the remaining pudding.

7-Top with a final layer of graham crackers.

8-Spread the chocolate frosting evenly over the top.

9-After assembling, refrigerate for at least 8 hours or overnight so the layers soften and develop a creamy texture similar to a chocolate eclair. This process makes the cake easy to slice and serve, perfect for any occasion.