In 3-quart heavy saucepan or deep 10-inch nonstick skillet, cook corn syrup, butter, salt and milk over medium heat 2 to 3 minutes, stirring constantly with wooden spoon, until well blended. Reduce heat to medium-low; stir in cookie dough chunks. Cook 3 to 5 minutes, stirring constantly, until mixture is smooth and candy thermometer reads 160°F. Remove from heat.
Stir in chocolate chips and vanilla until melted and mixture is smooth. Add crushed granola bars; stir until well blended. Cook over low heat 1 to 2 minutes, stirring constantly, until mixture is shiny. Spread in ungreased 12x8-inch or 13x9-inch pan.** Refrigerate uncovered at least 2 hours until firm.
For serving pieces, cut into 8 rows by 6 rows. Serve in decorative candy cups or mini paper baking cups on platter.