Great-Grandma's Butter Cookies & Frosting

1 1/2 sticks (12 Tbs) butter, room temperature

1/4 c. brown sugar

1/4 c. white sugar

1 egg yolk (save egg white for frosting)

1 tsp. vanilla extract

Beat above ingredients together, then stir in 1 3/4 c. flour. Form a ball and chill about 1 hour. Place chilled dough on lightly floured surface, then roll to desired thickness (I like mine at about 1/4 inch thickness or so) and cut into shapes with cookie cutters. Re-gather scraps, re-roll and cut. Bake at 350 degrees F for 10 minutes.

Frosting:

1/2 (4 Tbs.) stick butter, room temperature

2 1/2 c. confectioner's sugar

1 egg white

1/2 tsp. vanilla

Beat ingredients together until well combined. When frosting, be sure that frosting is at room temperature.