Blackberry Jam Cake

Ingredients

• 1 (12-ounce) jar Seedless Blackberry Jam
• Non-stick cooking spray or tab of butter
• 3/4 cup butter, softened
• 1 1/4 cups sugar
• 3 large eggs
• 2 1/2 cups all-purpose flour
• 1 teaspoon baking soda
• 1 teaspoon ground cinnamon
• 1/2 teaspoon ground cloves
• 1/2 teaspoon ground allspice
• 1/2 teaspoon ground nutmeg
• 1/2 teaspoon salt
• 1 cup buttermilk
• 1 cup chopped walnuts or pecans
• CARAMEL ICING INGREDIENTS
• 1/4 cup butter
• 1/2 cup firmly packed brown sugar
• 1/4 cup buttermilk
• 1 1/3 cups powdered sugar
• 1 teaspoon vanilla extract