Fuzzy Cakes
["1 c. butter", "1/3 c. sugar", "2 egg yolks", "1 tsp. vanilla", "3 c. sifted cake flour"]
["Cream butter and sugar.", "Add egg yolks, vanilla and flour. Blend.", "Roll into balls the size of a hickory nut.", "Place on cookie sheet.", "Make depression with finger.", "Fill with jelly. Bake 15 minutes at 375\u00b0.", "Yields 3 dozen cookies."]
["butter", "sugar", "egg yolks", "vanilla", "cake flour"]