Polish Kolachky

Directions

1. 1
   Cut butter in flour as for pastry.
2. 2
   Crumble yeast in sour cream.
3. 3
   Add egg yolks and mix well.
4. 4
   Add yeast mixture to flour mixture and mix well.
5. 5
   Chill 2-3 hours in refrigerator.
6. 6
   Roll out dough on a board covered with powdered sugar.
7. 7
   Cut into 3 inch squares and fill with fruit filling.
8. 8
   Lap opposite corners to center.
9. 9
   Bake at 350 degrees until brown.
10. 10
    Add a dash of powdered sugar on top before serving.