Preheat the oven to 350 degrees F. Line an 8 x 8 baking pan with parchment paper and set aside.

In a small bowl, combine all of the ingredients for the base layer. Stir until a crumbly type of dough has been formed. Press this "dough" into the bottom of an 8 x 8 baking pan.

Cook for 10 minutes or until lightly browned on top and remove from the oven.

Sprinkle the chocolate chips and marshmallows from the middle layer ingredient list on top to melt.

Beat together the brown sugar and butter until light and creamy. Stir in the oats, coarsely crushed graham crackers, and flour.

Scoop the dough over the marshmallow layer. Evenly disperse scoops of dough on top of the marshmallows and spread out dough.

Return to the oven for about 5 minutes

Remove from oven and add remaining chocolate chips and marshmallows.

Place in the oven and broil for 2 minutes or until marshmallows start to brown.

Remove, cool and enjoy!