Wash plums, dab dry, halve and stone. Cut halves into slices. Mix the groats powder with 6 tablespoons of cold water and 75 g sugar. Bring 340 ml water to the boil. Stir in the mixed groats, bring to the boil again.
Add plums and fold in. Let cool off. In the meantime mix quark, crème fraîche, 250 g sugar, lemon juice, eggs, pudding powder and semolina. Pour the quark mixture into a greased springform pan (26 cm Ø) dusted with flour and smooth it down. Spread the compote evenly on top. Leave a rim of 2 cm free. Bake the cake in a preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for 50-60 minutes. Cover after 40 minutes if necessary. Remove the cake from the oven. Remove from the edge of the springform pan with a knife and let it cool down for about 2 1/2 hours.
Bake the cake in a preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for 50-60 minutes. Cover after 40 minutes if necessary. Remove the cake from the oven. Remove from the edge of the springform pan with a knife and let it cool down for about 2 1/2 hours. Before serving, brush the rim with sugar syrup and sprinkle with grated coconut. Roast the coconut chips in a coated pan without fat until golden brown and sprinkle on the surface of the cake. Decorate with mint
waiting time approx. 2 1/2 hours