No Bake Mixed Berry Icebox Cake + VIDEO

freshly whipped cream, divided (or can use 3 1/2 cups of your favorite whipped topping like Cool Whip)

cream cheese, softened to room temperature

graham crackers

mixture of fresh blackberries,blueberries, raspberries and hulled and sliced strawberries, divided leaving the prettiest slices for the top

Optional Toppings

crushed graham cracker crumbs

chopped nuts

drizzle of chocolate

powdered sugar for dusting