Mix 175 g sugar, mascarpone and vanillin sugar with the whisks of the hand mixer. Add the quark and stir until smooth. First add the eggs one by one, then stir in the sauce powder. Pour the cheese mixture into a greased springform pan (26 cm Ø) sprinkled with flour and smooth it down. Bake in the preheated oven (electric cooker 175 °C/ convection oven: 150 °C/ gas: level 2) for 50-60 minutes. After about 30 minutes, cover the cake with aluminium foil to prevent it from getting too dark. Remove the cake from the oven, remove from the edge and let it cool down.
Wash, clean and halve the strawberries. Shortly before serving, take the cheesecake out of the mould and cover it tightly with strawberry halves. Drizzle with orange liqueur. For the meringue, beat the egg whites with the whisks of the hand mixer until stiff, adding 100 g sugar. Spread the meringue loosely on the strawberries and bake in a preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for 8-10 minutes until golden brown. Dust the edge with a little icing sugar and serve
1 1/2 hours waiting time