4 c. flour
1/2 tsp. salt
1 tsp. vanilla
1 1/4 c. butter (2 1/2 cubes)
3 egg yolks
1/2 c. commercial sour cream
1 cake yeast

Sift flour with salt, crumble the yeast thoroughly with the flour. Add butter, beaten egg yolks, sour cream and flavoring. Knead until well mixed. Place in refrigerator while filling is made. Beat 3 egg whites until stiff, add 1 cup sugar gradually, fold in 1 cup of finely ground nuts and 1 teaspoon flavoring. Dredge pastry board with powdered sugar, divide dough into thirds; roll each third on sugared surface to about 9" circle. Cut each circle in 12 wedge shaped pieces. Spread each wedge with filling; roll wedge, starting with wide end and rolling to point. Bake at 400 degrees for 15 to 18 minutes. Sprinkle with powdered sugar.