Combine flour, soda, salt and yeast in bowl.
Cut in oleo.
Stir in egg yolks and softened sour cream.
Turn out on floured board and knead into dough.
Refrigerate dough overnight in a covered bowl.
2Next Day - Prepare Filling:
Melt oleo, add in remaining filling ingredients. Egg whites and additional milk are optional.
3Assemble Nut Roll:
Grease Jelly Roll pans (3)
Cut dough into 3 pieces.
Roll each dough piece out flat on a powdered sugared cloth ~ 18".
Spread melted Crisco on dough.
Top dough with 1/3 nut filling mixture.
4Roll up lengthwise and seal ends and seam with the melted Crisco.
Place roll on greased pan, seam side down.
Let raise in a warm place (covered) for 30 minutes.
5Bake at 375 degrees for 30 minutes....check crust after 20 minutes.