Scrape the cocoa mixture back into the custard and whisk until well combined.

Pour cocoa mixture over dry ingredients and whisk until smooth.

Pour into the cocoa mixture and stir until smooth.

Beat in the kirsch, and then the cocoa mixture just until combined.

Beat in the yolks and then gradually add the cocoa mixture.

Gradually add milk to cocoa mixture and whisk until blended.

Add the cocoa mixture and stir until blended.

Fold them gently into the cocoa mixture.

Add one-quarter of the egg white to the cocoa mixture and whisk until blended.

Remove 1 heaping cup of egg whites and place it on top of the cocoa mixture.