Next, remove the bowl from the heat and add the mascarpone cheese and coffee extract.

When the egg yolk and sugar are done, add the mascarpone and beat gently with electric beaters until well combined.

Add the mascarpone a spoon at a time until smooth.

Let the mixture cool down before adding the mascarpone.

Add the mascarpone, cream, vanilla and icing sugar to a mixing bowl and whip until it is stiff.