Ingredients:

Layer 1 (solid pudding):

1 pax agar powder (@ 12 grams)
190 gr sugar
60 gr choco powder (Van Houten brand is nice!!!), sifted
800 ml milk ( take 300 ml to dissolve choco powder)
3 yolks, beaten

Layer 2 (spongy pudding):

1 pax agar powder (@12 grams)
190 gr sugar
60 gr choco powder (Van Houten brand is nice!!!), sifted
800 ml milk ( take 300 ml to dissolve choco powder)
2 yolks, beaten
3 white eggs, whisk with mixer until there're hard peaks

Vanilla Vla:

400m ml milk mix with 80 gr sugar
1 yolk
1 tbsp cornflour, dissolve with 1 tbsp of warm water
1/2 tsp vanilin powder (can be substituted by Rhum)

Steps:

Layer 1 (solid):

1. In a bowl mix together 300 ml milk, sugar, and choco powder. Stir until the powders well dissolved.
2. Pour the 500 ml milk into a pan, add agar powder and whisk. Add the choco mixture. Use only low heat and stir occasionally.
3. After it boils, take some amount of mixture and add into the yolks, stir quickly and put back into the pan. Stir again.
4. After it boils again, before it's poured into the mould, strain the agar mixture to obtain smooth texture.
5. Put in the fridge after no more steam.

Layer 2 (spongy):

1. Do these steps after 1st layer has solidified. Repeat the step 1,2 and 3 of solid part above.
2. After it boils for twice, strain into the whipped white eggs mixture and whisk quickly to prevent coagulation.
3. Pour into the mould and let it cools down

Vla:

1. Pour milk, sugar and vanilin powder into a pan.
2. Stir quickly and use low heat.
3. Take some mixture into the yolk, whisk and put back
4. Add cornflour
5. Serve with cold pudding

How how? Long steps aren't? But that's cooking art...long steps but you won't regret the result. Hehehe.