Drain the curd well in a sieve. Drain the apricots and collect the juice. Fill up the juice with water at 1⁄2 l liquid. Stir 5 tbsp. juice, vanilla sugar and sauce powder until smooth.
Boil up the rest of the juice. Stir in the sauce powder and simmer for about 1 minute. Remove the pot from the heat and stir in the liqueur. Cut apricots into slices and add. Leave to cool.
Grease a flat ovenproof dish (approx. 24 cm Ø). Preheat the oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer). Separate the eggs. Mix egg yolks, sugar and lemon peel with the whisks of the mixer for 5-7 minutes until creamy.
Stir in the quark. Add flour, stir in briefly. Beat egg white and 1 pinch of salt until stiff and fold in portions.
Cut off the curd mixture with a tablespoon into 4-6 large portions and place in the mould. Bake in a hot oven for 25-30 minutes. Dust with icing sugar and add the apricot compote.