Knead flour, baking powder, butter, 50 g sugar, 1 pinch of salt and 1 egg with the dough hooks of a hand mixer to a smooth dough. Wrap in foil and put in the fridge for about 2 hours. For the rice pudding bring milk, 20 g sugar and rice to the boil. Cover and let it swell for about 40 minutes at low heat. Let the rice pudding cool down a little. Separate 2 eggs.
Beat the egg yolks, 30 g sugar, cinnamon and lemon zest until creamy with the whisks of a hand mixer. Drain the fruit on a sieve and collect the juice. Stir rice pudding and starch into the egg yolk mixture. Beat the egg white with salt until very stiff. Carefully fold the egg white and half of the fruit into the rice mixture. Grease a flat, ovenproof dish (26 cm Ø). Roll out the dough to a circle (approx. 30 cm Ø) on a floured work surface. Place in the mould, press the rim and prick the base several times with a fork. Pour the rice pudding filling onto the dough. Bake in the preheated oven (electric range: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 35 minutes. For the compote, stir the sauce powder into the fruit juice with a whisk.
Grease a flat, ovenproof dish (26 cm Ø). Roll out the dough to a circle (approx. 30 cm Ø) on a floured work surface. Place in the mould, press the rim and prick the base several times with a fork. Pour the rice pudding filling onto the dough. Bake in the preheated oven (electric range: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 35 minutes. For the compote, stir the sauce powder into the fruit juice with a whisk. Fold in the remaining fruit. Dust the quiche with icing sugar and serve with the compote
1 1/4 hours waiting time