Peanut Butter Cookies

2 1/2 cups flour
1 1/2 teaspoons baking soda
1/2 teaspoon salt
1 cup butter softened
1 cup peanut butter
1 cup sugar
1 cup brown sugar
2 eggs
1 teaspoon vanilla

Mix together flour, baking soda and salt; set aside. In a mixer beat butter until fluffy; add peanut butter, sugars, eggs and vanilla. Add in dry ingredients and mix well. form into one inch balls on a cookie sheet. Press each cookie with the tines of a fork in a crisscross pattern. Bake at 375° for 10 minutes.