CHOCO FLAN CAKE

For caramel :
Sugar 8 tbsp
Water 2 tbsp
Flan :
Eggs 7
Sugar 2/3 cups
Milk pwdr 2/3 cup
Coco pwdr 3 tbsp
Fresh milk 2 1/2 cup
Cake :
Eggs whites 6
Egg yolk 6
Sugar 2/3 cup
Flour 150g
Baking pwdr 1 tsp