Blueberry Strudel

Blueberry Strudel Flaky, golden, paper-thin pastry wrapped around a juicy, jammy blueberry filling with a hint of lemon and cinnamon — an elegant, impressive pastry that is far easier to make than it looks and tastes absolutely extraordinary warm from the oven with a dusting of powdered sugar.

INGREDIENTS

• 2 cups fresh or frozen blueberries
• 0.5 cups granulated sugar
• 2 tablespoons cornstarch
• 1 tablespoon fresh lemon juice
• 1 teaspoon lemon zest
• 0.5 teaspoons cinnamon
• 0.25 teaspoons nutmeg
• 1 teaspoon vanilla extract
• 1 sheet puff pastry or 6 sheets phyllo dough, thawed if frozen
• 0.5 cups unsalted butter, melted (for phyllo) or 1 egg beaten with 1 tablespoon milk (for puff pastry)
• 0.5 cups breadcrumbs, plain and fine (for phyllo only)
• 2 tablespoons granulated sugar mixed with 0.5 teaspoons cinnamon (for topping)
• powdered sugar, for dusting
• vanilla ice cream or whipped cream, for serving

STEPS

1. Make the blueberry filling: In a medium saucepan over medium heat, combine the blueberries, granulated sugar, cornstarch, lemon juice, lemon zest, cinnamon, and nutmeg. Cook, stirring frequently, for 5–7 minutes until the blueberries burst, the mixture thickens to a jammy consistency, and the cornstarch is fully cooked out. Remove from heat and stir in the vanilla extract. Spread onto a plate and let cool completely — a hot filling will make the pastry soggy and prevent it from crisping properly.
2. Preheat the oven: Preheat your oven to 400°F (205°C) and line a large baking sheet with parchment paper.
3. Prepare the pastry — puff pastry method: On a lightly floured surface, unfold the puff pastry sheet and roll gently to smooth any creases into a rectangle approximately 12×10 inches. Transfer to the prepared baking sheet.
4. Prepare the pastry — phyllo method: Lay one sheet of phyllo on the prepared baking sheet and brush generously with melted butter. Sprinkle lightly with breadcrumbs — the breadcrumbs absorb excess moisture from the filling and keep the phyllo crispy. Layer the remaining phyllo sheets on top, brushing each generously with melted butter and sprinkling lightly with breadcrumbs between every layer.
5. Fill and roll: Spoon the cooled blueberry filling along one long edge of the pastry, leaving a 2-inch border on all sides. Fold the short ends inward over the filling, then roll the pastry tightly from the filled edge to the other side to form a log. Place seam-side down on the baking sheet and press the ends firmly to seal.
6. Score and finish: Using a sharp knife, cut 4–5 diagonal slits across the top of the strudel to allow steam to escape during baking. For puff pastry — brush the entire surface generously with the egg wash. For phyllo — brush generously with the remaining melted butter. Sprinkle the cinnamon sugar mixture evenly over the top.
7. Bake: Bake at 400°F for 25–30 minutes for puff pastry or 20–25 minutes for phyllo, until the pastry is deep golden brown and shatteringly crispy all over. Let cool on the baking sheet for 10 minutes.
8. Dust and serve: Dust generously with powdered sugar through a fine mesh sieve. Slice into generous portions and serve warm with vanilla ice cream or whipped cream alongside.

NOTES Tips: Letting the blueberry filling cool completely before adding it to the pastry is the single most important step — hot or warm filling steams the pastry from the inside and prevents it from ever getting properly crispy and flaky. Frozen blueberries work beautifully and actually hold up better than fresh during cooking since they are slightly firmer — do not thaw them before making the filling. For phyllo dough, working quickly and keeping the unused sheets covered with a damp kitchen towel prevents them from drying out and cracking while you work. The breadcrumbs between phyllo layers are a traditional technique that absorbs moisture from the filling and keeps every layer perfectly crispy — never skip this step when using phyllo. This strudel is best eaten warm and fresh on the day it is baked but keeps loosely covered at room temperature for up to 2 days — reheat in a 350°F oven for 10 minutes to restore the crispiness.