For the bottom, melt butter in a small pot, remove from heat. Put the biscuits in a freezer bag, seal well and crumble finely with a cake roll. Mix the cookie crumbs with butter. Wrap the bottom edge of the springform pan tightly with aluminium foil (see
tip below). Pour the crumb-butter mix into the mould and press it into a flat base with a tablespoon. Chill for about 30 minutes.
Preheat for the cheesecake oven (electric cooker: 200 °C/circulating air: 180 °C/gas: see manufacturer). Cream quark, peanut cream, sugar, vanilla sugar and starch with the whisks of the mixer.
Stir in the eggs one by one. Finally stir in cream. Pour the cheesecake mixture into the mould. Smooth with a dough scraper.
Slide the grease pan of the oven onto the middle rail. Place the springform pan on the fat pan. Pour boiling water about 1 cm high into the fat pan. (The water bath prevents your cheesecake from getting unsightly cracks.) Bake cheesecake in the hot oven for about 10 minutes.
Then switch down the oven (electric cooker: 120 °C/circulating air: 100 °C/gas: see manufacturer). Bake the cheesecake for another 1 1⁄4 hours. Remove the cake from the oven and let it cool down on a cake rack for about 40 minutes.
Use a damp kitchen knife to remove the cake from the edge of the mould and lift it out of the mould. Place in the refrigerator for about 1 hour.
For the topping, roughly chop the peanuts just before serving. Caramelise the sugar in a large pot. Only start stirring when the sugar has completely liquefied and is golden yellow. Remove from the heat.
Peel or clean, wash and chop the vegetables. Peel and finely chop onion and garlic. Wash thyme, shake dry, remove leaves. Bring 3-4 l salt water (1 teaspoon salt per litre) to the boil.