Perozhki - cooking recipe

Ingredients

3 egg yolks
1 c. butter
2 tsp. vanilla
2 tsp. lemon juice
2 Tbsp. sour cream
2 c. flour
egg whites, beaten to meringue
walnut halves

Preparation

Mix butter and flour together.
Beat egg yolks slightly and add sour cream, vanilla and lemon.
Beat this into butter and flour mixture.
Turn completed mixture onto a floured board and shape into balls the size of marbles.
Chill overnight.