Grease 4 soufflé tins (or cups of 250 ml) and sprinkle with sugar. Separate the eggs. Coarsely grate the marzipan and stir with 1 egg white until smooth. Melt the fat in a saucepan.
Stir in flour and add milk while stirring. Bring to the boil, boil for 1-2 minutes. Remove the pot from the heat and stir in the egg yolks one by one. Stir in marzipan mixture, almonds and liqueur.
Let the mixture cool down. Beat 2 egg whites and sugar until stiff and fold in carefully. Pour the soufflé mixture into the prepared moulds. Bake in the preheated oven in a water bath (electric oven: 200 °C/ gas: level 3) for 25-30 minutes.
In the meantime, chop the chocolate and melt it over a warm water bath. Remove the soufflés from the oven, turn them out of the moulds, decorate with chocolate in strips, dust with icing sugar and decorate with petals.