1/2 c. butter
1/2 c. brown sugar
1 c. flour
1/2 c. graham cracker crumbs
2 c. mini-marshmallows
1 (6 oz.) pkg. chocolate chips

Beat butter and sugar until light and fluffy. Add flour and cracker crumbs. Press into bottom of 9-inch square pan. Sprinkle marshmallows and chocolate chips on top. Bake at 375 degrees 15-20 minutes.