Ingredients

6 egg yolks
1 1/4 cups sugar
1/2 cup sour cream
1 tablespoon butter, melted
1 cup buttermilk
1 teaspoon vanilla
4 1/2 cups flour, divided
4 teaspoons baking powder
1/2 teaspoon salt

Instructions

Mix all ingredients together except ½ cup flour. Chill overnight or several hours. Then, if needed, add additional ½ cup flour
and roll into pencil thin figure eights. Bake on greased cookie sheets at 400 degrees F for about 7 minutes, or until slightly
brown. Spread with butter to serve.