Take 1/2 cup butter and mix & match your recipe from these options . . .
LINE 8-inch square pan with foil, with ends of foil extending over sides; spray with cooking spray. Microwave 8 squares Baker's Chocolate and butter in large microwaveable bowl on HIGH 2 min. or until butter is melted. Stir until chocolate is completely melted.
ADD 1 cup each broken Cookies and nuts; mix well. Spread onto bottom of prepared pan.
REFRIGERATE 3 hours or until firm. Use foil handles to remove dessert from pan before cutting into squares.