In a small saucepan, heat the milk and sugar.
Stir the poppy seeds and the linseed flour briskly into the milk.
Bring the poppy seed mixture briefly to the boil and add 1 tablespoon of rum if necessary.
Let cool briefly and in the meantime roll out 3/4 of the shortcrust mixture and lift it into the cake tin.
Press well up the edge with your fingers.
Spread the fruit spread evenly on the cake base.
Top the cake with the cherries.
And now add the poppyseed filling on den cherries filling.
Roll out the rest of the pastry and place as a lid on the cake.
With the back of a fork, make a pattern around the edge and prick the cake several times.
Bake at 180 degrees for about 35-40 minutes.
Decorate with fresh cherries.