2.3 cups unbleached flour with king arthur all-purpose
0.3 teaspoon vanilla extract
Equipment
baking sheet
oven
wire rack
hand mixer
cookie cutter
Directions
Beat butter at medium speed with an electric mixer until creamy; gradually add sugar, beating well. Stir in vanilla.
Combine flour and salt; gradually add to butter mixture, beating at low speed until blended.
Roll dough to 1/2" thickness on a lightly floured surface.
Cut with a 2 1/2" round cutter or Christmas cookie cutter.
Place 2" apart on an ungreased baking sheet.
Bake at 275 for 50 minutes. Cool 2 minutes on baking sheet.
Remove to a wire rack to cool.
Note: Unbleached flour is the best-quality, freshest flour for baking and is particularly good in simple recipes like shortbread. Other kinds of all-purpose flour work fine in this recipe, too.