Knead the flour, 50 g sweetness, 125 g butter in flakes, 1 egg, 1 pinch of salt and 1-2 tablespoons cold water. Grease a tart mould (26 cm Ø) with a removable bottom
Roll out the dough round (approx. 30 cm Ø). Line the mould with it, pull up the edge a little. Prick the base more often. Chill for about 30 minutes. Pre-bake the tart in a preheated oven (electric range: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 15 minutes
Drain the peaches. Mix yoghurt, 50 g sweet, lemon zest, 2 eggs and pudding powder. Cover tart with peaches. Spread the icing on top and bake at the same temperature for 30-35 minutes. Warm up the jam, sieve and spread on the peaches. Cool down