Make a short pastry from the ingredients listed. Roll out 2/3 of the dough on the bottom of a cake springform pan, form the rest into a roll, place it on the edge and press it down until it is 3 cm high.
For the topping, mix the well-drained curd in order with sauce powder, egg yolks, 2/3 of the sugar and lemon zest and juice.
Whip the 4 egg whites to egg whites, folding in the rest of the sugar. Gently fold the beaten egg whites into the curd mixture. Spread evenly over the dough.
Bake at 200 °C for 45-60 minutes.
You can also fill the cake with fruit, such as apricots. To do this, first brush only a third of the curd mixture, then put the fruit and spread the rest of the amount on top.
Have fun with this fine cake!