Given the task definition and input, reply with output. In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

For the filling, toast pine nuts in a dry pan until golden brown. Remove and allow to cool. Melt 5 tbsp butter in a pan and saute breadcrumbs until light brown. Remove and allow to cool. Toss apples in lemon juice and set aside.,For the pastry, mix together flour, salt, eggs, oil and 3 tbsp water into a smooth dough. Turn onto a work surface lightly dusted with flour and knead for 10 mins. If the dough becomes dry, add a few drops of oil. Cover and leave to rest for 30 mins at room temperature.,Preheat oven to 400F. Melt remaining butter in a saucepan. Roll out pastry, on a kitchen towel dusted with powdered sugar, to form a 15 x 24 inch rectangle. Brush with half of the melted butter, sprinkle with breadcrumbs, apples, raisins, pine nuts and sugar. With the help of the kitchen towel, roll up the strudel like a cigar.,______
Line a baking sheet with parchment and set the strudel on it diagonally with the seam underneath. Brush with remaining melted butter and bake for 30-35 mins. When the strudel is cooked, allow to cool, then dust with powdered sugar. Serve with vanilla custard.