In a deep skillet over medium-low heat, roast the dry milk until light brown. Remove from heat set aside and let it cool down.
Pre heat oven to 350F.
In a bowl combine, eggs and vanilla extract, beat well.
Add oil, sugar and mix well.
Add roasted milk, baking powder and table cream and mix.
Pour 3/4 the batter in a 9x13 oven pan lined with parchment paper.
Arrange biscuit on top of the mixture then pour the rest, smoothing the top.
Bake for 20-25 minutes.
Meanwhile mix the ingredients of the top layer.
Take the pan from the oven then top with the cream cheese layer.
Add drops of chocolate sauce. with the help of a fork or a knife, make waves through the top layer so to make a marble like decoration.
Return to the oven for another 10-15 minutes until it all sets.
Let it cool down, cut and serve.