In a mixing bowl, knead the flour, vegan butter (ideally in small pieces), icing sugar and marzipan (also in small pieces) to form a smooth dough. Then let the dough rest for 1 hour. Then preheat the oven to 180° top/bottom heat.

Cut the dough into slices and shape them first into balls and then into croissants.

After baking, put the baking sheet on a cooling grid and use a sieve to dust the croissants with icing sugar.

Let cool completely and store in a tin can.