Blackberry Breakfast Casserole

Name: Blackberry Breakfast Casserole
Cuisine: European, American
Ingredients: 1 cup of seedless blackberry jam (I use the sugar free kind); 8 oz. of cream cheese; 2 container of Pillsbury buttermilk biscuits; 4 eggs; 2 cups of half & half; 2 teaspoons of cinnamon sugar; 2 teaspoons of vanilla extract; 1/2 cup of packed brown sugar; Other Supplies Needed; 9 x 13 baking dish; Small pot; Non-stick spray; Kitchen scissors (designated for food); Mixing bowl