In a mixing bowl add the butter, white sugar and the brown sugar mix well until incorporated add one egg and mix
Add the melted chocolate,.mix well,sieve 2 cups of flour in a bowl add baking soda and coco powder mix well
Transfer it into the wet ingredients add butter milk and continue to mix,transfer it into a baking pan and bake for 45mins
In another bowl add one cup of icing sugar, one cup of flour pinch of salt and mix add 3 egg yolk and mix then transfer the warm milk and mix, take the mixture back to fire and continue stirring up and mix until thick and creamy.
In another bowl add butter and mix until smooth and fluffy
Add the melted chocolate sauce,mix and add the cream custard
Mix it well and spread it all over the cake, garnish with Oreo cookies
