Knead 200 g flour, fructose, cold fat in pieces and 4-5 tablespoons of ice-cold water. Cover and chill for about 30 minutes
Drain the apricots. Roll out the dough on a lightly floured work surface until round (approx. 28 cm Ø) and place in a greased tart or springform pan (approx. 24 cm Ø). Press the dough up about 2 cm at the edge. Prick the base several times. Pre-bake in the preheated oven (electric cooker: 200 °C / convection oven: 175 °C / gas: level 3) for approx. 10 minutes
Mix the sour cream, egg and sauce powder. Cover the tart with apricots and pour the egg sour cream over it. Bake at the same temperature for about 20 minutes. Let it cool down, sprinkle with pistachios