S'mores Bars

This delicious recipe comes from my sister-in-law, who got it from allrecipes.com, I think. The recipe calls for 5 Hershey's bars, but I use a bag of milk chocolate chips because that's what I usually have on hand. Enjoy!

1/2 C butter, softened
3/4 C sugar
1 egg
1 tsp vanilla
1 1/3 C flour
3/4 C crushed graham crackers (about 4 full-sized ones)
1 tsp baking powder
1/4 tsp salt
1 bag milk chocolate chips
3 C mini marshmallows

Heat oven to 350. Grease an 8 x 8 pan. (They are easier to cut if you line your pan with foil and then spray it. You can pick them right out of the pan and set them on a cutting board so the corners and edges are easier to cut.) Beat butter and sugar together. Then add the egg and vanilla and mix well. In a separate bowl, combine the flour, graham cracker crumbs, baking powder, and salt. Slowly add this to the butter mixture until combined and crumbly. Press 1/2 of the dough into the pan. (I usually do about 2/3 of the dough in the pan, as I like more cookie underneath.;) Bake for 15 minutes. Remove from oven and sprinkle chocolate chips and marshmallows over the top. Crumble remaining dough over marshmallows and bake for 10-15 more minutes, or until the marshmallows are golden brown. So very very yummy.