Keeflies

Instructions

1. Mix flour and butter like pastry; add beaten egg yolks and sour cream or evaporated milk; work until dough is smooth.
2. Roll the dough into long rolls as for icebox cookies.
3. Chill in refrigerator for at least 24 hours, preferably a couple of days.
4. Cut the chilled dough into 1/2-inch slices.
5. Cut these slices into four pieces and roll each piece in the palm of your hand into a ball.
6. Place the balls on a slightly floured board and roll each into a paper-thin circle.
7. Fill the circles with your preferred nut filling.