Blackberry Jam Cake with Caramel Icing Recipe - USA

Ingredients

• 2 cups sugar
• 3/4 cup margarine
• 3 cups flour
• 1 1/2 cups blackberry jam
• 6 tsp sour cream
• 1 tsp baking soda in milk
• 1 1/2 tsp nutmeg
• 2 tsp allspice
• 2 tsp cinnamon
• 6 eggs (at room temperature)
• 2 cups brown sugar
• 1 1/2 cups white granulated sugar
• 2 tbsp corn syrup
• 1 cup plus 2 tbsp heavy cream
• 1/2 cup butter (room temperature)