Pour warm water into a mixing bowl. Add yeast, stirring until yeast dissolves, then stir in sour cream, sugar, baking soda, egg yolks, soft shortening, salt and all purpose flour.
Turn dough onto lightly floured board and fold over several times until smooth. Roll into an oblong 24 x 6 inches.
Spread half with 2 Tbl soft butter; on other half put nut filling. Fold the side with the soft butter over the other side. Cut into 36 strips, 1-inch wide, Hold strip at both ends and twist in opposite directions. Place on greased baking sheet. Cover and let rise until light (1 hr)
Bake at 375 for 10-12 minutes until golden brown.
While warm, frost with confectioner’s sugar icing.
Nut Filling
Mix ingredients in order.
Confectioner’s Sugar Icing
Mix margarine and sugar, then add milk and vanilla. Mix until smooth.
Recipe Notes
2 or 3 tsp of Cinnamon can be added to the filling if desired.