Ingredients:
1 1/2 c. all-purpose flour
1/2 cup graham cracker crumbs
1 cup butter, softened
½ cup confectioners sugar
¼ tsp salt
¼ tsp double acting baking powder
1 tsp vanilla
1 cup milk chocolate chips
60 minature marshmallows
Directions:
Preheat oven to 350 F. In a large bowl with mixer at medium speed, beat first 7 ingredients until mixed, occasionally scraping bowl.
Press firmly into a 9x13 pan. Prick dough all over with a fork.
Bake 30-35 minutes. Remove from oven, sprinkle chocolate chips over the top and return to oven just long enough for the chips to melt. Remove from oven and evenly spread the chocolate over the top of the shortbread with a knife or the back of a spoon.
Dot the top all over with minature marshmallows.
Place under the broiler until the marshmallows turn golden brown.
Remove from broiler and cool. Cut into squares.