Step 1 of 3
Preheat oven to 400F degrees.
Step 2 of 3
Cream butter, shortening, and sugar together.
Add eggs and vanilla, and mix well.
Mix in flour, salt, and baking powder.
Chill for 1 hour, unless you are hungry for some cookies.
Step 3 of 3
Bake for 6-8 minutes. Don't over bake. I usually remove them before they start browning.