Spread a thin layer on the bottom of a 13x9 pan. This is just to anchor the cracker layer.
Top with a layer of graham crackers. Fill in any gaps with crackers cut to size.
14.4 ounces graham crackers
Top with 1/3 of the marshmallow mixture and spread in an even layer.
Next, add half the chocolate ganache.
Repeat layer of graham crackers, 1/3 marshmallow mixture and remaining ganache.
Top with final layer of graham crackers and final 1/3 of marshmallow mixture.
Cover and refrigerate for at least 4 hours or overnight.
Garnish with graham cracker crumbs, chocolate chunks and marshmallows, if desired.
Video
Author: Rebekah | Kitchen Gidget
4.92 from 80 votes
Notes
You can make your own whipped topping or simply purchase a tub of Cool Whip to make things quicker. If you do decide to make your own whipped cream, I would highly suggest using homemade stabilized whipped cream, as it won't deflate as quickly as the regular kind.
Be sure to let your ganache cool in the fridge for a bit to help it set while you prepare the other ingredients.