Arrange graham crackers in a single layer in a greased 13 x 9 inch pan.
Prepare brownies as directed. Spread over crackers. Bake at 350º for 25-30 minutes or until a toothpick inserted near center comes out clean.
Sprinkle with marshmallows, chocolate chips and peanuts. Bake 5 minutes longer or until marshmallows are slightly puffed and golden brown.
Cool on wire rack before cutting.
Recipe submitted by florentine on 8/6/00