To make chocolate sauce, first add water, cocoa powder and sugar to a pan and place it over flame till sugar completely dissolves.
Let bubbles just begin to appear and off the flame and pour in a bowl and refrigerate.
To make cake,
For cake, preheat oven to 200°C and line a baking tray to get thin slices with butter paper and grease with butter.
Combine both sugars, eggs, and vanilla together.
Double boil butter and chocolate till complety melted and pour to egg mixture.
Add flour, cocoa powder and salt and mix completely.
Pour the batter into the tray and bake for 15min or till toothpick inserted centre comes out clean.
With a round cookie cutter cut a circle of the cake.
Cut the other pieces into rectangles and triangles.
Take a freezer safe bowl and line with plastic wrap.
Place the round cake at the bottom and the rectangles and triangles at the sides to form a dome.
Press the cake pieces nicely so that it is completely filled. Cut off the excess.
Spread the softened ice cream into the cake and place a small glass bowl wrapped with plastic onto it and press to create a well and place in freezer till ice cream is hard.
for chocolate cream, whip together whipping cream, sugar, and cocoa powder.
Remove from freezer and pour the chocolate sauce over it.
And add the chocolate cream and spread the remaning cake pieces over it and cover with plastic wrap and keep in freezer till cream hardens.
to prepare ganache pour cream in pan and heat till it begins to bubble on top. pour it over chocolate in a bowl and mix till chocolate completely melts.
Remove from freezer and remove plastic and place upside down on plate and pour the ganache over it. Decorate with whip cream ( optional).
