Autumn Hazelnut Belgian Strudel

What Makes This Special

This is a simplified Belgian-inspired strudel built for autumn, holding roasted hazelnuts and apples in a dough you make in one bowl. The moisture management and slow bake yield a structure with a crisp shell and a soft, seasonal filling.

Ingredients

All the core elements go into one bowl: the dough, filling, and fat. Autumn ingredients like apples and hazelnuts bring structure, aroma, and seasonal context. Breadcrumbs absorb liquid from the fruit, keeping the base crisp. Lemon juice counters sweetness and supports browning.

For the Dough and Filling

• Plain flour: Provides gluten for stretch.
• Unsalted butter: Melts for a soft, extensible dough and browns for flavour in baking.
• Egg: Binds and tenderises.
• Water: Hydrates proteins.
• Salt: Reinforces gluten and balances flavour.
• Apples & hazelnuts: Bulk, texture, and autumn theme.
• Brown sugar, spices: Sweetness and aroma.
• Breadcrumbs: Essential control for filling moisture.
• Lemon juice: Acid for fruit and colour.

Instructions

Step 1: Mix and Rest the Dough

Put flour, melted butter (50 g), egg, water, and salt in a large bowl. Mix with a wooden spoon until a rough dough forms. Knead in the bowl for 3-5 minutes until smooth and elastic. The kneading develops gluten for stretch. Cover with a damp towel and rest at room temperature, 30 minutes. This relaxes the gluten, making stretching possible later.

Step 2: Prepare the Filling

Add chopped apples, hazelnuts, brown sugar, sultanas, cinnamon, nutmeg, breadcrumbs, and lemon juice to the same bowl. Toss well. The sugar and salt will draw moisture from the apples. Breadcrumbs absorb excess liquid to prevent soggy pastry. Let this sit while dough rests.

Step 3: Shape and Fill

Heat oven to 170°C (fan) or 180°C (conventional). On a parchment-lined tray, dust a little flour. Place rested dough in the centre. With floured hands, stretch and pull the dough outward from the centre, working carefully until you have a rectangle about 30x40 cm. The dough should be thin enough to see shadow through it—thicker will bake, but texture is affected.

Spoon filling in a line 5 cm from one long edge, leaving 3 cm at each short end. Fold short edges over the filling (to seal), then roll the long side up around the filling, using the parchment to help lift and roll tightly. Place seam side down on the tray.

Step 4: Bake Slowly

Brush the top with melted butter. This helps colour and crisp the crust. Bake for 40 minutes at 170°C (fan), then lower to 150°C and bake 20 minutes more. Slow finishing bake drives off fruit moisture, setting the structure without burning. Strudel is done when golden and crisp, and a skewer inserted in the centre meets little resistance.

Pro Tips

• Let the dough rest: 30 minutes minimum, 1 hour is better for stretch.
• Breadcrumbs are not optional; they prevent soggy bottoms.
• Pull dough slowly—fast stretching tears gluten, causing leaks.

Troubleshooting

Dough tears when stretching? Let it rest longer. Gluten is too tight.

Filling leaks during bake? Too much moisture, or dough was too thin in one area.

Variations

• Substitute pears for apples for a milder fruit base.
• Add 30 g dark chocolate chips to the filling for additional richness.
• Replace hazelnuts with walnuts for a different autumn note.

Storage

Cool completely, wrap tightly in foil. Keeps 2 days at room temperature, 4 days refrigerated. Reheat at 150°C for 10 minutes to restore crispness.