1 and 3/4 cups all-purpose flour
1/2 teaspoon baking soda1/2 teaspoon salt
3/4 cup unsalted butter, melted
1 cup packed brown sugar
1/3 cup white sugar
1 tablespoon vanilla extract
1 egg yolk
1.75 cups semisweet chocolate chips
1 cup crushed graham cracker crumbs
1 1/2 cups mini marshmallows
2 Hershey bars (I used dark)
Preheat the oven to 325 degrees F. Line cookie sheet with foil.
Sift together the flour, baking soda and salt; set aside.
In a medium bowl, cream the melted butter, brown sugar and white sugar until well blended. Beat in the vanilla, egg, and egg yolk until light and creamy. Mix in flour mixture until just blended. Stir in the chocolate chips and graham cracker crumbs. Drop cookie dough 1/8 cup at a time onto the prepared cookie sheets. You should fit 12 cookies per sheet.
Bake for 10 minutes in the preheated oven and remove from oven. Push 3 to 4 marshmallows and a piece of a hershey's bar into each cookie. Return to oven and bake for 3-4 more minutes. Cool on counter.