These Peanut Butter Cookies must come close to the top of the list of America's favorites. Try them to see that I am not wrong. If you love peanut butter you will love these cookies too.
Place butter and sugar in a bowl and use an electric mixer to cream them until light and fluffy.
In another bowl, mix the egg and vanilla essence, then gradually beat them into the butter mixture.
Stir in the peanut butter and blend throughly. Sift together the flour, baking soda and salt and stir into the mixture to form a soft dough. Chill the dough for at least 30 minutes until firm.
Preheat oven to 350F/180C. Lightly grease two baking sheets or cover them with parchment paper or silicon mats.
Spoon out rounded teaspoonfuls of the dough and roll into balls.(You can use an ice cream scoop as well)
Place the balls on the prepared baking sheets and press flat with a fork into rounds about 2 ½in/6cm in diameter, making a criss-cross pattern. Bake the cookies for about 12 minutes or until lightly brown. Transfer to a wire rack to cool.