Peanut Butter Cookies

½ cup butter

½ cup peanut butter

1½ cups flour

½ cup brown sugar

½ cup white sugar

1 egg

¼ tsp. salt

½ tsp. baking soda

½ tsp. baking powder

Mix all ingredients together until smooth and creamy. Drop by tsp. onto ungreased cookie sheet, bake at 375-degrees for 12 minutes. If desired, flatten with fork to make criss-cross design, or flatten with glass bottom that has been dipped in sugar