1. Preheat oven to 350° F; grease 15 x 10-inch jelly-roll pan.
2. Combine flour, baking powder and salt in small bowl.
3. Beat sugar and butter in large mixer bowl until creamy.
4. Beat in eggs and vanilla extract; gradually beat in flour mixture.
5. Stir in morsels; spread into prepared pan.
6. Bake for 20 to 25 minutes or until top is golden brown.
7. Cool in pan on wire rack.