The Best Peanut Butter Cookies

1 cup Butter or margarine
1 cup Light brown sugar
1 cup Sugar
2 large Eggs (well beaten)
1 cup Peanut butter
3 cups Flour
2 tsp Baking soda
1/4 tsp Salt

Preheat oven to 350 degrees F. Beat butter until soft and creamy, then add both sugars and beat until well blended. Add in eggs, and beat until light and smooth. Add the peanut butter and mix well. Combine together flour, baking soda and salt and add to peanut butter mixture, beating well. Roll dough into small balls, about 1 inch round and place onto ungreased baking sheets. Flatten each cookie with a fork that has been dipped in flour, making a criss cross design. Bake for 8-10 minutes or until the edges are slightly golden browned. Remove from baking sheets to cool.