Halve the vanilla pod lengthwise and scrape out the pulp. Whip half of the pulp with butter and sugar until white-creamy. Add quark, cream cheese, cream and eggs and mix well. Stir milk and 100 g starch until smooth, add and stir in.
Pour the cheese mixture into a well greased casserole dish (23 x 31 cm, 5 cm high).
Place the mould on the fat pan of the oven and fill the fat pan with hot water. Bake in the preheated oven (electric cooker: 175 °C/ circulating air: 150 °C/ gas: see manufacturer) for approx. 1 1/4 hours.
If necessary, cover with foil after approx. 45 minutes. Turn off the oven, open one gap and let the cake cool down for about 1 hour. Take out and let it cool down on a cake rack.
In the meantime, wash, clean and quarter the strawberries. Wash the orange hot, rub dry and finely grate half of the skin. Stir jam, liqueur, orange peel and remaining vanilla pulp with 3 teaspoons of starch in a small pot until smooth.
Bring to the boil while stirring and simmer at low heat for about 2 minutes. Add the mixture to the strawberries and mix carefully.
Cut the cake into pieces, lift it out of the tin and arrange it on a plate. Spread strawberry compote on top. Chop the pistachios roughly and decorate the cake with them.