Preheat oven to 350°F.
Beat butter and brown sugar with electric mixer in large bowl until fluffy. Beat in corn syrup, egg and vanilla. Beat in flour, baking soda and salt until combined.
Stir in candy pieces and cookies.
Drop dough by heaping tablespoonfuls onto lightly greased baking sheets.
Bake for 9 to 11 minutes or until lightly browned. Cool 1 to 2 minutes on pan; remove from pan to wire rack.