For the pudding or the flammeri, bring the milk to the boil in a saucepan together with 35 g sugar and the grated lemon zest. Sprinkle in the semolina and let it swell for 5 to 6 minutes at a very low temperature, stirring frequently. Let cool, then stir in the quark.
Wash, halve and core the plums or plums. Place the fruits with the cut surfaces facing up in a large, flat baking dish and sprinkle with the 3 tablespoons of sugar. Grill or caramelize for approx. 8 to 10 minutes at 200 ° C to 225 ° C in the middle of the oven.
Arrange the flammeri with the plums on dessert plates and serve.