Keeflies - cooking recipe

Ingredients

4 c. flour
1 lb. butter
6 egg yolks
1/2 pt. sour cream or evaporated milk

Preparation

Mix flour and butter like pastry; add beaten yolks and cream; work until dough is smooth.
Roll into long rolls as for icebox box cookies.
Chill in refrigerator for at least 24 hours (couple of days is better).
Cut into 1/2-inch slices.
Cut these into four pieces and roll in palm of hands into balls.
Put on slightly floured board and roll each paper thin.
Fill with following nut filling.