In a large mixing bowl beat the butter and sugar over high speed until pale and fluffy (about 3-5 minutes.)
Mix in the flour over low speed until mixture resembles large crumbs. Lightly knead by hand until dough comes together.
Transfer dough to a work surface and cut into three equal parts. Shape each portion into a long thin log (either circle or rectangular shape.) Wrap and place into the freezer for 30 minutes or until firm to slice.
Pre-heat oven to 350°. Once the dough has hardened slice 1/4" thick slices and place onto a baking sheet, sprinkle tops with a generous amount of granulated sugar and bake for 20-25 minutes or until centers look white and edges look golden.
Can substitute vanilla sugar when sprinkling tops for granulated sugar. This will give a vanilla scent.