Instructions

  1. Heat oven to 350°F Grease 15-1/2x10-1/2x1-inch jelly-roll pan.
  2. Stir together brown sugar, butter and granulated sugar in large bowl; beat in eggs and vanilla.
  3. Add flour and salt, beating just until blended.
  4. Stir in 1-1/2 cups chips; spread batter in prepared pan.
  5. Bake 25 to 30 minutes or until wooden pick inserted in center comes out clean and surface is lightly browned.
  6. Cool completely; cut into bars.
  7. Place remaining 1/4 cup chips and shortening in small microwave-safe bowl.
  8. Microwave at HIGH (100%) 30 seconds; stir.
  9. If necessary, microwave at HIGH an additional 15 seconds at a time, stirring after each heating, until chips are melted and mixture is smooth when stirred.
  10. Drizzle over bars.
  11. About 6 dozen bars.