Grease the springform pan (26 cm Ø). Cut apples into thin rings and sprinkle with lemon juice.
Mix 150 g quark, 1 egg, oil, 40 g sweetness and 1 pinch of salt. Knead in flour and baking powder. Press the dough into the tin, raising the rim 3-4 cm.
Separate two eggs. Mix the egg yolks with 200 g quark and 40 g sweet. Beat egg whites until stiff and fold in. Spread the mixture on the dough. Spread apples on top. Fill the holes with the cranberries.
Bake in a hot oven (electric oven: 200°C/circulating air: 175°C/gas: level 3) for 25-30 minutes. Let them cool down. Warm up the jam. Coat the cake with it. Sprinkle the edge with coconut flakes.