Lokshen shalet

Name: Lokshen shalet (Noodle and apple cake)
Cuisine: Germany
Ingredients: double (heavy) cream, to serve; homemade tagliatelle/tagliolini made with 200 g/7 oz Italian 00 flour and 2 eggs, or 250 g/9 oz dried egg tagliatelle; homemade tagliatelle/tagliolini made with 200 g/7 oz Italian 00 flour and 2 eggs, or 250 g/9 oz dried egg tagliatelle; homemade tagliatelle/tagliolini made with 200 g/7 oz Italian 00 flour and 2 eggs, or 250 g/9 oz dried egg tagliatelle; 125 g/4½ oz/¾ cup raisins; 2 tsp ground cinnamon; a pinch of ground cloves; a generous grating of nutmeg; 500 g/1 lb 2 oz tart eating apples, peeled and finely sliced; 4 tbsp rum; 75 g/2¾ oz/5 tbsp unsalted butter, plus extra for the dish; 3 eggs, separated; 100 g/3½ oz/½ cup caster (superfine) sugar