Chocolate Eclair Cake Recipe

Ingredients:
For the layers:
2 packets (14-16 sheets) graham crackers
2 cups cold milk
1 package (3.4 oz) instant vanilla pudding mix
1 1/2 cups heavy whipping cream (or 8 oz whipped topping)
1/4 cup powdered sugar (optional)
For the chocolate topping:
1/2 cup unsweetened cocoa powder
1/2 cup granulated sugar
1/4 cup milk
4 tbsp unsalted butter
1 tsp vanilla extract
Instructions:

Instructions:
Prepare the Filling:
In a large bowl, whisk the instant vanilla pudding mix and cold milk until thickened (about 2 minutes).
In another bowl, whip the heavy cream with powdered sugar (if using) until stiff peaks form. Fold the whipped cream into the pudding mixture until smooth and fluffy.
Assemble the Cake: