Preheat the oven to 190C/375F/gas mark 5
Use a 1.4kg/3 lb loaf tin.
Grease and line the loaf tin. Press the cottage cheese through a sieve or liquidise. Sift the flour with the baking powder on to a pastry board and form a well in the centre. Add the cottage cheese, sour cream, sugar, vanilla sugar, salt, lemon rind, nuts, fruit and peel. Mix to a firm dough, knead lightly. Place in the loaf tin and bake for 50-60 minutes. leave to firm up in the tin before transferring the loaf to a wire cooling rack. Brush with melted butter while still hot. Mix the icing sugar and vanilla sugar and sift over the loaf.
