Wash, clean and halve the strawberries. Sprinkle with liqueur and let it soak through. Line a mould with Amaretti and sprinkle with 100 ml coffee. Stir mascarpone, quark, egg yolk, icing sugar, vanilla flavouring, lemon juice and remaining coffee until smooth.
Spread two thirds of the strawberries on the amaretti and pour the mascarpone cream over it. Peel off the chocolate with a peeler and sprinkle over it. Garnish with the remaining strawberries and mint.