Blackberry Jam Cake
["2/3 c. butter", "1 c. jam", "1 c. sour milk", "1 tsp. soda", "2 tsp. baking powder", "1/2 tsp. cloves", "1 tsp. cinnamon", "3 eggs (beaten egg whites)", "3 c. flour", "1 tsp. vanilla", "1/3 tsp. salt"]
["Cream butter and sugar.", "Add jam to egg yolks.", "Mix together. Add sifted dry ingredients alternately with sour milk.", "Fold in beaten egg whites and vanilla.", "Bake in 3 layer greased and floured cake pans in 350\u00b0 oven. Use boiled frosting for filling and on top of cake."]
["butter", "sour milk", "soda", "baking powder", "cloves", "cinnamon", "eggs", "flour", "vanilla", "salt"]