3 wrapped packs from club crackers divided (Waverly)
1 cup butter
1/2 cup sugar
1 cup packed brown sugar
2 cups crushed graham cracker crumbs
1/2 cup milk
1/2 cup semi sweet chocolate chips
1/2 cup butterscotch chips
2/3 cups peanut butter

Spray a 13x9x2-inch pan with cooking spray and line bottom with a single layer of crackers. Combine butter, sugars, graham cracker crumbs and milk in saucepan; bring to boil over medium heat and boil 5 minutes. Pour half of the sauce over crackers, then place another layer of crackers over the sauce. Pour remaining sauce over crackers, then arrange the third layer of crackers over sauce. In a saucepan combine chocolate and butterscotch chips, and peanut butter over low heat, stirring until smooth. Pour over top layer of crackers. Refrigerate until sauce is hardened. Cut into squares.
Makes about 20.

Source: http://southernfood.about.com/od/candyrecipes