beat butter, 1/2 cup powdered sugar, and vanilla together thoroughly, set aside
measure the flour by using the above-mentioned dipping method, put in a separate mixing bowl
add the salt and stir with a fork
use a mixer and blend the flour into the butter mix
wrap and cover well with plastic wrap
chill for at least an hour
to bake preheat the oven to 400˚
roll the dough into one inch balls
put on a parchment-lined baking sheet
bake for 10-12 minutes or until set
cool for a couple of minutes on the baking sheet while it's still warm
put the other cup of of powdered sugar in a shallow bowl
while they are still warmroll each cookie through the powdered sugar and set on a baking rack
when completely cool roll in the powdered sugar again
store in an air tight cookie tin