Authentic Austrian Apfelstrudel Recipe | Traditional Apple Strudel

Ingredients

• 1 1/2 cups all-purpose flour
• 1/4 teaspoon fine sea salt
• 1/3 cup lukewarm water
• 2 tablespoons neutral oil (such as grapeseed)
• 1 teaspoon white wine vinegar
• 4 large tart apples (such as Granny Smith), peeled, cored, and thinly sliced
• 1/2 cup golden raisins, soaked in 2 tablespoons dark rum
• 1/2 cup granulated sugar
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1 tablespoon lemon juice
• 1 tablespoon finely grated lemon zest
• 1/2 cup unsalted butter, melted (divided use)
• 3/4 cup fresh breadcrumbs (from brioche or white bread)
• 1/2 cup finely chopped toasted walnuts
• 1/4 teaspoon kosher salt
• Powdered sugar, for dusting