Chocolate trifle

To see my video on how to make chocolate cake check this link http://youtu.be/VPQHp1KADmw To see my video on how to make strawberry sauce check this link http://youtu.be/KBE4DFyf1Ro To see my video on how to make custard check this link http://youtu.be/k8zwhvI8K5Q Recipe: Blackberry jam Strawberry sauce Chocolate cake Custard Mascarpone cheese Whipping cream