Defrost the spring roll leaves. Bring milk to the boil, except for 4 tablespoons. Stir sauce powder, remaining milk and 4 tablespoons sugar until smooth. Stir into the boiling milk, bring to the boil and simmer for about 1 minute while stirring. Keep sauce cool
Wash and quarter apples, remove core. Cut quarter into slices. Cut marzipan lengthwise into 8 slices
Place the spring roll leaves next to each other on the work surface. Place 1 slice of marzipan, 1/8 of the apple slices and approx. 1/8 of the sultanas in the lower left corner, leaving approx. 4 cm free at the top. Brush the edges with water. Beat the tip over the filling. Turn the corners from both sides towards the middle and roll up to a firm roll
Heat the oil in a pan. Fry the rolls in portions in the hot oil for approx. 6 minutes until golden brown while turning. Drain on kitchen paper. Arrange spring rolls and vanilla sauce on plates. Sprinkle with cinnamon sugar