Wyoming Blackberry Jam Cake with Caramel Frosting

Description
This recipe came from an estate sale. I obtained it when I purchased the family collection from the Cabrera Estate in Malakoff, Texas in 1986.
 * Contributed by Catsrecipes Y-Group

Ingredients

 * 3 cups cake flour
 * ½ teaspoon salt
 * 1 teaspoon cinnamon
 * ¼ teaspoon ground cloves
 * ¼ teaspoon allspice
 * 2 sticks butter
 * 2 cups granulated sugar
 * 1 teaspoon baking soda
 * 1 cup buttermilk
 * 6 eggs
 * 2 cups seedless blackberry jam

Caramel Frosting

 * ¾ cup firmly packed brown sugar
 * ¼ cup granulated sugar
 * ½ cup milk
 * 1 tablespoon butter

Directions

 * 1) Stir together flour, salt and spices.
 * 2) Cream butter and sugar together well then add in the sifted flour mix and blend well.
 * 3) Stir the soda into the buttermilk and add into the mixture and stir again.
 * 4) Add eggs one at a time mixing well after each then add the jam and mix in thoroughly.
 * 5) Bake in three greased and floured cake pans for 30 minutes.
 * 6) When cool frost in between layers and sides and top of cake.
 * 7) To make frosting boil brown sugar, sugar and milk until syrup forms a soft ball in cold water then add butter and cool to lukewarm.
 * 8) Beat until thick and creamy.