Preheat oven to 350 degrees
Crush graham crackers inside a ziploc baggie with a rolling pin (you can choose how fine you want your crumbs)
Put your crushed graham crackers into a medium bowl, add the melted butter, sugar, and salt and mix together so that all the crackers are coated with the melted butter.
In a large bowl, add your 1 cup softened butter and sugars, beat until creamy.
Add your eggs, milk, and vanilla and mix again until those are all incorporated.
In another medium bowl, add your flour, salt, baking soda, and baking powder and combine.
Add your flour mixture and your graham cracker crumbs to your wet mixture and stir together.
Gently stir in your milk chocolate chips.
Onto your cookie sheet, scoop 1 inch size balls.
Bake your cookies for about 7 minutes.
Remove your tray from the oven and top each cookie with 1/4 piece of marshmallow.
Place cookie sheet back into the oven to bake for 1 and 1/2 minutes.
Remove again from the oven and let cool for 2 minutes.
Top the marshmallows with 1/4 piece of the snack Hershey bar.
Allow to rest for a couple more minutes on cookie sheet before moving to a cooling rack.
Cool cookies for about 2 hours before sharing (you can eat sooner, your chocolate and marshmallow will just be soft)