Apple strudel

Strudel pastry

• 370 g plain flour
• 1 egg
• 70 g sunflower oil
• 120 g water
• 1 tsp white wine vinegar
• ½ tsp salt

Apple filling

• 100 g hazelnuts
• 130 g butter, unsalted, cut in pieces
• 80 g breadcrumbs
• 1 tsp ground cinnamon
• 100 g sugar
• 1 Tbsp vanilla sugar, homemade
  or 1 ½ tsp natural vanilla extract
• 20 g lemon juice
• 20 g rum (optional)
• 750 g apples, peeled
• 80 g raisins

Strudel assembly

• plain flour, for dusting
• icing sugar, for dusting