Bring the milk to the boil. Add 150 g sugar, semolina and poppy seeds.
Remove from heat. Stir in 2 eggs, salt and lemon juice and chill. Mix 150 g margarine, 150 g sugar, vanilla sugar, 2 eggs, 300 g flour and baking powder to a dough and spread it on a baking tray. Spread the cooled topping on top.
Make crumbles from 100 g flour, 70 g sugar, 70 g margarine and cinnamon and spread on the topping. Bake for about 45 minutes at 170 degrees.