This is a recipe I found using Keeblers Fudge Shoppe Fudge Sticks (the Originals). The brownies are incredible, they go great with vanilla ice cream. My family loved them! I think I am going to play with the recipe and try it with different type cookies, the possibilities are endless...
Preheat oven to 350 degrees F. Spray bottom of 13x9x2-inch baking pan with cooking spray.
Spread half of the prepared brownie mix in bottom of prepared baking pan. Sprinkle evenly with crushed cookies. (I found that chilling the cookies helps when crushing, which I did by putting them in a sandwich bag then whacking with the flat end of my meat hammer.)
Place marshmallow fluff and peanut butter in medium mixing bowl and microwave for 30-45 seconds.
Working quickly, stir marshmallow fluff and peanut butter until mixed. Spread evenly over cookies. (It almost resembles taffy, and I used my hands to spread it, which worked much better than my spatula.)
Spread remaining brownie mix over mixture. Bake in preheated oven 35-40 minutes or until fork or toothpick inserted in center comes out clean. Allow to cool. Cut into 2-inch squares.