butter cookies

http://www.youtube.com/watch?v=iwkAMYLKhsM&feature=related
butter cookies

2+2/3  cup  all-p flour
1      cup    butter
1      cup    sugar
1              egg
2      tsp    vanilla
1/4   tsp    salt

1，BEAT  butter,sugar,egg,vanilla
2，MIX   flour.  
3，400  F，8-10 min