Meltaway Christmas Cookies

My mother had been making these for years, and told me that she liked them as a Christmas cookie. With sugar cookie snowmen in competition, I could never understand why she felt this was a holiday treat... After I was married I made them one day and my husband said "this is what they make at Christmas in Norway!" Aha!
makes 5 doz

1 cup soft butter
1/2 cup sifted powdered sugar
1 tsp vanilla
2 1/4 cup flour

Heat oven to 400*. Mix thoroughly butter, sugar, vanilla. Stir in flour. Drop by teaspoonfuls onto ungreased baking sheet (I roll little balls). (Cookies don’t spread.) Bake about 10 min, until set but not brown. While still warm, roll in powdered sugar.