Prepare the Crust: In a bowl, mix the flour with powdered sugar and salt. Add the butter in pieces, and knead quickly into a smooth dough. Form the dough into a flat disk, wrap it in foil, and chill in the refrigerator for 30 minutes.
Preheat the Oven: Preheat your oven to 170 degrees Celsius (150 degrees for fan ovens). Grease the bottom of a springform pan (Ø 26cm).
Form the Crust: Press half of the chilled dough into the bottom of the springform pan. Use the remaining dough to line the sides of the pan about 5 cm high. Use a knife to trim any excess dough and pierce the bottom of the crust with a fork.
Make the Filling: In another bowl, mix the lean curd with the vanilla pudding powder and 200 g of sugar. Separate the eggs; add the egg yolks to the curd mixture.
Whip the Egg Whites: In a separate bowl, beat the egg whites with the remaining 20 g of sugar and a pinch of salt until stiff peaks form. Gently fold the egg whites into the curd mixture, followed by the oil and raisins.
Combine and Bake: Pour the cheesecake filling onto the prepared crust, smoothing out the top. Place a water-filled ovenproof dish on the lower rack of the oven to create steam. Bake the cheesecake in the lower third of the oven for about 70 minutes or until set.