Preheat oven to 375 degrees. Line cookie sheet with parchment paper.
In a medium bowl whisk together the flour, graham cracker crumbs, baking soda and salt.
In a mixer bowl beat together the butter, sugar, brown sugar and vanilla until creamy.
Add the eggs one at a time, beating well after each addition.
Slowly beat in the flour mixture until smooth.
Stir in the chocolate chips. Chill 30 mins.
Scoop 2 1/2 ounce mounds onto parchment lined cookie sheet.
Bake for 8 minutes-open oven and swing 4 1/4 inch cookie cutter around the cookie to help shape them. Continue baking 1-2 mins.
Remove from oven and push 3 to 4 marshmallows into each cookie.
Return to the oven and bake an additional 3 minutes until done. Remove and top with Hershey pieces (I used 2 diff sizes)
Cool cookies.