01 -
Cream butter and powdered sugar until light. Mix in egg yolk and vanilla. Sift in flour and mix to form dough.
02 -
Wrap dough in plastic, refrigerate 20 minutes.
03 -
Divide dough in 2 pieces, roll each into 4-inch log.
04 -
Wrap logs, freeze 45 minutes.
05 -
Roll logs in sugar, slice ⅜-inch thick. Bake at 356°F for 15-18 minutes until golden.