Choco Chiffon Cake

I made one choco chiffon cake for today's breakfast which is made from dark cocoa powder and unsweetened cocoa powder. Not everyone likes dark chocolate because it is bitter and not sweet. Luckily, my daughter likes it.

Oven Temperature: 180C
Baking Time: 45 minutes
Mould Size: 9"

Ingredients:
(A) 4           Egg Whites
      1/2 tsp  Cream of Tartar
      100g     Castor Sugar

(B) 1 tbsp   Dark Cocoa Powder
      30g      Cocoa Powder
      60ml    Warm Water

(C) 50g       Castor Sugar
      1/2 tsp  Salt
      100g     Superfine Flour
      1/2 tsp  Sodium Bicarbonate
      1/2 tsp  Baking Powder

(D) 50ml     Cooking Oil
      1 tsp     Vanilla Essence
      4           Egg Yolks
      50ml      Fresh Milk


Methods:
(1) Whisk ingredients (A) till stiff peaks form.
(2) Mix ingredients (B) till well combined.
(3) Pour dry ingredients (C) into the big bowl. Mix thoroughly with an egg whisk. Gradually add in ingredients (D) and ingredients (B), mix till well combined.
(4) Fold in 1/3 (1) into the egg yolk mixture, blend gently. Then pour in the balance 2/3. Blend in the mixture with a plastic spatula so as not to over-mix.
(5) Bake at 180C for 30-35 minutes.