1/2 cup butter, softened
In a mixing bowl, cream butter and sugars. Add egg whites; beat well.
Blend in peanut butter and vanilla.
Combine flour, baking soda and salt; add to creamed mixture and mix well.
Stir in candy bars. Shape into 1-1/2 balls and place on greased baking sheets.
Bake at 350 degrees for 10 - 12 minutes or until golden brown. Cool on racks.
Yield: 4 dozen