1 c  Peanut butter
   1/2 c  Butter or margarine;
          -softened
   1/2 c  Light brown sugar; packed
   1/4 c  Sugar
     1 ts Baking soda
   1/2 ts Vanilla extract
   1/4 ts Salt
     1 lg Egg
     1 c  Flour
   1/2 lb Peanut brittle; coarsely
          -chopped
 In a large bowl, with mixer at medium speed, beat first 8 ingredients until
 blended, occasionally scraping bowl with rubber spatula. Reduce speed to
 low; add flour and beat just until blended. Preheat oven to 350 degrees.
 Drop dough by heaping tablespoon, about 2 inches apart, on 2 ungreased
 large cookie sheets. Top cookie dough with chopped peanut brittle pieces,
 gently pressing peanut brittle halfway into dough. Place cookie sheets on 2
 oven racks. Bake cookies 15 to 20 minutes until lightly browned, rotating
 cookie sheets halfway through baking time. Cool 2 minutes on cookie sheets
 on wire racks; with pancake turner, remove cookies to wire racks to cool
 completely. Store cookies in tightly covered container.
                 
                 Yields       
                18 Servings