Instructions

  1. Preheat oven to 350°.
  2. Cream sugars and margarine at medium speed until well-blended (about 4 minutes.) Add egg whites and vanilla; beat well.
  3. Lightly spoon flour into measuring cups; level with a knife.
  4. Combine flour, baking powder and salt; stir well with a whisk.
  5. Add flour mixture to butter mixture; beat at low speed just until blended.
  6. Spread batter evenly in an 8" square pan that has been sprayed with cooking spray.
  7. Sprinkle evenly with butterscotch morsels.
  8. Bake at 350° for 28-30 minutes or until a wooden pick inserted in the center comes out clean.
  9. Cool and cut into squares.