My mother used to make these at Xmas time. I loved them and looked forward to them. I could never convince her to make them other times of the year.
Cream 1 c. butter, 2 tsp. vanilla and ¼ c. confectioners sugar together. Add 1 Tbsp water and 2 c. flour. Stir in 1 c slivered almonds. Form into crescents on a cookie sheet and bake at 350°F for 20 minutes. Roll in confections sugar while still warm.