Clean, wash and cut the rhubarb into small pieces. Bring juice and 25 g sugar to the boil in a pot, add rhubarb. Cover and simmer for 3-4 minutes. Stir starch with 1 tbsp. water until smooth. Stir into the boiling rhubarb, bring to the boil again and simmer for about 1 minute. Put into a bowl and let cool down for about 1 hour
In the meantime, mix quark, sour cream, eggs, 75 g sugar, lemon peel and vanilla sugar. Stir in sauce powder. Divide the quark mixture into 4 ovenproof moulds (each containing 300 ml). Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 20-25 minutes. Increase the temperature approx. 5 minutes before the end of the baking time (electric oven: 200 °C/ convection oven: 175 °C/ gas: level 3), remove. Dust curd cream with icing sugar, add compote
Waiting time approx. 1 hour