Ingredients:1 cup(s) (2 sticks) unsalted butter, softened2/3 cup(s) confectioners' sugar1 1/4 teaspoon(s) vanilla extract1/4 teaspoon(s) salt2 cup(s) all-purpose flour Directions:Make dough: Beat butter, sugar, vanilla, and salt with a mixer on medium speed until blended. On low speed, beat in flour until a soft dough forms. Divide dough into thirds, then flatten each into a disk. Wrap each separately in plastic; chill 30 minutes. Bake dough: Heat oven to 350 degrees F. Line baking sheets…