For cake: 1 cup butter, softened 2 cups sugar 3 eggs 1 cup buttermilk 1 teaspoon baking soda 1 cup blackberry jam 3½ cups cake flour 1 teaspoon ground cloves 1 teaspoon ground allspice 1 teaspoon ground cinnamon 1 cup chopped pecans For caramel frosting: ½ cup butter...
