Wash, halve, stone and quarter the plums. Grease a springform pan (26 cm Ø)
Mix quark, milk, oil and 75 g sugar. Mix flour and baking powder. Knead into the quark mixture with the dough hooks of the hand mixer. Roll out round (approx. 34 cm Ø) on a little flour. Put into the form, pull up the edge approx. 3 cm
Spread the plums on the ground. Bake in a hot oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 35 minutes Cover after 25 minutes if necessary
Dice marzipan. Mix marzipan, egg white, 60 g sugar and milk with the whisk of the hand mixer. Pour into a stable piping bag with a large star-shaped spout. Spray a marzipan wreath on the edge of the cake and a large dot in the middle. Bake at the same temperature for another 35 minutes. Let it cool down
Roast the almonds without fat until golden yellow. Warm the jam and pass through a sieve. Spread the cake rim with it and press the almonds on