Delicate chocolate cakes with cream and jam

For the base:
֍ 2 eggs
֍ salt
֍ sugar 70 g
֍ vanilla sugar 8 g
֍ vegetable oil 100 ml
֍ milk 200 ml
֍ baking powder 10 g
֍ cocoa 3 tbsp
֍ flour 180 g

For the cream:
֍ cream cheese 180 g
֍ powdered sugar 2 tbsp
֍ cream 150 ml
֍ Jam