Beat butter, peanut butter, sugar and
egg in a small bowl until well combined. Transfer mixture to a large
bowl. Stir in sifted dry ingredients and nuts. Roll 2 level teaspoons
of mixture into a ball with lightly floured hands. Place onto greased
oven tray, flatten slightly with fork. Repeat with remaining mixture,
allowing about 3cm between cookies. bake in moderately hot oven for
about 12 minutes or until lightly browned. Cool on wire rack.