CHOP 1 pkg. (8 squares) Baker's Semi-Sweet Chocolate; place in medium microwaveable bowl. Add 1/2 cup butter. Microwave on MEDIUM 2-1/2 minutes. Stir until chocolate is completely melted and mixture is well blended.
COARSELY break 8 Dad's Oatmeal Cookies or 8 Oreo Cookies. (You should have about 1 cup broken cookies.) Add to chocolate mixture along with 1/4 cup chopped nuts; stir until well blended.
SPREAD into foil-lined 8-inch square pan. Refrigerate at least 1 hour or until firm. Cut into 16 squares to serve. Store in airtight container in refrigerator.