Margarine to RUB on a grater, add sour cream and hydrated soda, flour and knead the dough. Divide the dough into 15 pieces and put in the cold for 3 hours. Raisins pour boiling water for 1.5 hours to dry. Roll the dough strips, lay them raisins, stung into a tube and lay on a baking sheet seam side down. Bake. Tubes fold slide (5,4,3,2,1), fluff cream. Cream all ingredients beat with a mixer until smooth. Bon appetit!