Pre-heat oven to 375°. Sift
together flour, baking soda,
and salt.
Cream together butter,
shortening and peanut
butter. Add sugar and
brown sugar and cream until
smooth.
Mix in
eggs one at a time.
Gradually
add dry ingredients just
until well combined.
Roll
into 1” balls. Place on
cookie sheet and press down
with a fork, making a criss-cross
pattern. Bake 10-12 minutes.