2 tbsp. butter
1 1/3 c. sugar
1 egg yolks
1 tsp. vanilla
1 c. sour cream
1 c. whipping cream
1 tsp. baking soda
3 c. flour
1/2 tsp. salt
2 tsp. baking powder

Blend butter, sugar, egg yolks and vanilla. Blend sour cream with whipping cream and soda. Mix above together.

Blend flour, salt, and baking powder. Mix above. Chill overnight. Keep chilled, taking out small amount and rolling pencil thin 8 inch length. Lay on baking sheet in figure eight. Bake at 400 degrees for 8-9 minutes.