Make a shortcrust pastry from flour, margarine, sugar, baking powder, vanilla sugar and water and refrigerate for 1/2 hour, then it is easier to roll out. But I`ve also processed it directly. Also works when things have to be done quickly.
Wash the plums, cut in half and remove the stones, then quarter. Line a greased springform pan with the shortcrust pastry. Then top with the plums.
For the crumble, knead the flour, sugar, margarine and cinnamon and spread on the cake. Bake at 180 ° C (top / bottom heat) for approx. 55 - 60 minutes on the lower rail. Serve with a dollop of soy cream.