2 cups granulated sugar
1 1/2 cups butter or margarine
6 eggs
3 cups flour
1 cup buttermilk
2 cups blackberry jam
2 teaspoons baking soda
1 teaspoon nutmeg
1 teaspoon allspice

Cream sugar and butter; sift flour baking soda and spices. Add alternately flour mixture and eggs into creamed sugar and butter. Last, add jam. Preheat oven to 325 degrees F and pour mixture into well-greased and paper-line 9-inch layer pans. Bake about 30 minutes or until done.

Cooked Filling
2 cups granulated sugar
3/4 cup butter
1 1/2 cups milk

Let filling come to boil. While cakes are still warm, Pour a little filling at a time over each layer until it is used up. This makes the cake moist.