1 c. butter
2 c. sifted flour
1 egg yolk, slightly beaten
3/4 c. sour cream

FILLING:

3/4 c. sugar
3/4 c. finely chopped walnuts (or other)
1 tsp. cinnamon (I use 1 1/2-2 tsp.)

Cut butter into flour as for pie crust. Combine egg yolks and sour cream and add to flour. Mix well until blended. Form into 3 equal balls and wrap in waxed paper. Chill for several hours or overnight.

Roll each piece into circle about 12 inches in diameter. Cut into 16 wedges. Combine filling ingredients and sprinkle on dough. Roll each wedge, starting from outside.

Bake on ungreased cookie sheet at 375 degrees for 20-30 minutes, or until delicately browned.