Blackberry Jam Cake With Caramel Icing
["1/2 c. margarine, softened", "1/2 c. brown sugar, firmly packed", "1/2 c. white sugar", "3 eggs", "1/2 c. buttermilk", "3/4 c. blackberry preserves", "1 1/2 c. flour", "1 tsp. baking soda", "1/4 tsp. cloves", "1/2 tsp. allspice", "1/2 tsp. nutmeg", "1 1/2 tsp. cocoa", "1 c. raisins", "1 c. walnuts, chopped"]
["Cream together margarine and sugars.", "Add eggs, one at a time, mixing thoroughly after each one is added.", "Stir in buttermilk and preserves, mixing well.", "Sift together dry ingredients and add to mix.", "Pour into greased and floured 9 x 13-inch pan and bake at 350\u00b0 for 30 to 35 minutes.", "(Test with toothpick.)", "Cool."]
["margarine", "brown sugar", "white sugar", "eggs", "buttermilk", "blackberry preserves", "flour", "baking soda", "cloves", "allspice", "nutmeg", "cocoa", "raisins", "walnuts"]