Add apples, lemon or orange juice, cinnamon, and raw sugar, and lightly fry/steam (approximately 5 minutes, depending on quantity) until the escaping liquid evaporates. Remove the pan from the heat and stir in the grated hazelnuts, almonds, and sultanas. Preheat the oven to 180 °C. Place a sheet of strudel pastry on a clean kitchen towel and place 2 tbsp filling on the bottom edge. Fold in the side edges and carefully roll up the sheet, starting at the filling. Place seam side down on a baking tray and brush with oil. Do the same with the other sheets until the filling is used up.
Prunes contain iron, calcium, potassium, magnesium and phosphate. The B vitamins act as a balm for the nervous system and boost your metabolism. The dyes, especially those in the peel, have an antioxidative effect. They are good for the heart and help to protect against cancer.