1/2 cup butter softened,
1/2 cup brown sugar,
1/2 cup crunchy peanut butter,
1-1/2 cups flour,
1 teaspoon vanilla extract,
1/2 teaspoon baking soda,
1/2 teaspoon salt,
Cream butter with sugar and peanut butter;
Add vanilla and egg, beating until fluffy;
Stir in baking soda and salt;
Blend in flour; mix until a stiff dough forms;
Shape into walnut-sized balls; place on lightly greased cookie sheets.
Press with fork, crisscross, to flatten.
Bake at 375 F for 10 minutes or until lightly browned.
Have a nice day!