Lemon Cake
["8 egg yolks", "3/4 c. soft butter", "1 1/4 c. sugar", "2 1/2 c. cake flour", "1 Tbsp. baking powder", "1 tsp. lemon juice", "1 tsp. vanilla flavoring"]
["Mix all ingredients with mixer.", "Grease and flour 3 layer cake pans.", "Pour batter into pans and bake at 375\u00b0 for 18 to 20 minutes."]
["egg yolks", "butter", "sugar", "cake flour", "baking powder", "lemon juice", "vanilla flavoring"]