01 -
Whisk together the instant French vanilla pudding mix and milk in a large bowl for 1-2 minutes until smooth and thickened. Let rest for 3 minutes to thicken completely.
02 -
Fold thawed whipped topping into the pudding mixture until evenly combined and no white streaks remain. Set aside.
03 -
Transfer the apple pie filling into a small bowl. Use a small sharp knife or kitchen shears to cut larger apple pieces into ½-inch uniform sizes. Stir in ground cinnamon and set aside.
04 -
In the bottom of a 9x13-inch baking pan, place 10 whole graham cracker sheets, breaking them as needed to fit snugly in a single layer.
05 -
Spread half of the apple pie filling evenly over the graham cracker base. Spoon half of the pudding mixture on top of the apples and spread into an even layer.
06 -
Add another layer of 10 graham crackers. Follow with the remaining apple pie filling, the rest of the pudding mixture, and a final layer of 10 graham crackers.
07 -
Heat the caramel apple dip in the microwave for 30-45 seconds until spreadable. Evenly spread the caramel over the final graham cracker layer using a small offset spatula.
08 -
Refrigerate the assembled eclair cake for a minimum of 6-8 hours or overnight before serving.