1/2 cup creamy peanut butter
1/2 cup margarine
1/2 cup brown sugar
1/2 cup white sugar
1 egg
1 tsp vanilla
1/2 cup chocolate chips
3/4 cup flour
1/2 tsp baking soda

Cream together peanut butter and margarine; add the sugars, egg and vanilla. Blend the mixture until smooth. Add the dry ingrendients and blend well, then add the chocolate chips. Roll into 1 inch balls and bake on a greased cookie sheet for 15 minutes at 350°F. Cool on a wire rack.