preheat oven to 350F
cream together 1/2 cup softened butter + 1/2 cup dark brown sugar + 1/4 cup granulated sugar + 1 tsp vanilla
whisk in 1 egg just until combined
add in 1 1/4 cup + 2 tbsp all purpose flour + 1/2 tsp baking powder
fold in 1/4 cup crushed graham crackers & 1 cup total chocolate chips + spring m&ms
press into oiled/lined 9×9 baking dish
melt 1 cup marshmallows + 1 tbsp butter for 30 seconds in microwave and spread on top of dough
bake for 30-33 min or until golden