Wrap the bottom and half of the rim of a springform pan (26 cm Ø) in aluminium foil from the outside so that the liquid cheese mass cannot run out of the pan. For the crispy base melt 60 g butter and let it cool down for about 5 minutes.
Put cookies in a freezer bag and crumble them. Mix well with the liquid butter. Pour into the springform pan and press down to a smooth base with your hands. Cover and chill for about 45 minutes.
Preheat oven (electric cooker: 175°C/circulating air: 150°C/gas: level 2). Wash cherries, remove stalks and pit them. For the cheese mixture, mix 100 g butter, sugar and vanilla sugar with the whisks of the mixer.
Stir in the eggs one by one. Stir in the quark, pudding powder and starch. Fold in 300 g cherries.
Spread the mixture on the cookie base and place the pan on a baking tray. Bake in a hot oven for 1-1 1/4 hours. If necessary, cover with aluminium foil 15 minutes before the end of the baking time. Let the cake cool down a little in the oven, take it out and let it cool down.
For the compote, put 150 g cherries in a bowl. Add jam sugar and puree with a hand blender for 45 seconds. Fold in the rest of the cherries (approx. 200 g). Dust the cake with icing sugar.
Add cherry grits.