Mix brownie mix, eggs, oil and water on low until well blended.

Turn speed to high for one minute and beat until batter is smooth and creamy

Line bottom of a 9x9" square pan with parchment paper and pour 3/4 of the brownie mix into the pan.

Sprinkle graham cracker crumbs on top of batter.

Place chocolate bars on top, then pour the remaining batter over the chocolate bars.

Bake according to directions on package.

Once brownies are backed, remove from oven and top with marshmallows.

Set oven to broil and place brownies under the broiler until marshmallows have melted and turned a golden brown color.

Cool brownies on a wire rack, then cut into 3x3 inch squares.

Enjoy!