Engadiner Nusstorte

Background and origin

Engadiner Nusstorte, also known as Bündner Nusstorte, is a classic Swiss alpine pastry from the Engadine valley. It marries a sturdy shortcrust shell with a rich nut caramel, yielding a tart that travels well, slices cleanly, and keeps beautifully. Bakeries across Graubünden have produced and shipped it for generations, and home bakers prize it for its balance of deep caramel notes, gentle sweetness, and satisfying crunch. The hallmark look is a sealed, golden disc with a neat crimp and a glossy interior, developed to be dependable for postal delivery and celebratory gifting alike.

Ingredients

For the shortcrust (22–24 cm tart)

• 300 g flour
• 150 g cold butter, in small cubes
• 100 g sugar
• 1 large egg
• 1/4 tsp salt
• 1 tsp vanilla

For the nut caramel filling

• 400 g walnuts, coarsely chopped
• 250 g sugar
• 150 g honey
• 200 ml cream
• 30 g butter
• 2 tbsp water
• 1/4 tsp salt

Method

1. Make the dough: In a bowl, whisk together the flour, sugar, and salt. Cut in the cold butter until the mixture resembles coarse crumbs. Add the egg and vanilla, then mix just until it comes together into a smooth dough. Divide into two pieces (about 2/3 for the base, 1/3 for the lid), wrap, and chill for 30 minutes.
2. Line the pan: Lightly dust the work surface with a little flour and roll the larger piece into a round, about 3–4 mm thick. Fit it into a 22–24 cm tart tin with a removable base (or a pie dish), pressing into the corners without stretching. Trim excess flush with the rim and chill the lined pan for 15 minutes.
3. Prepare the lid: Roll the smaller piece to a round slightly larger than the pan. Place it on parchment and chill for 15 minutes so it firms up and is easy to transfer later.
4. Toast the nuts: Spread the walnuts on a dry skillet over medium heat, stirring until fragrant and lightly colored, about 7 minutes. Transfer to a bowl so they stop toasting.
5. Cook the caramel: In a medium, heavy saucepan, stir the sugar and water to moisten, then cook over medium heat without stirring until the syrup turns a deep amber. Remove from the heat and carefully whisk in the butter. In a separate small pan, warm the cream with the honey until steaming, then gradually whisk that mixture into the caramel (it will bubble vigorously). Return to low heat and simmer for 1–2 minutes to fully dissolve any hardened bits. Stir in the salt and the toasted walnuts, then set aside to cool and thicken for about 10 minutes.
6. Assemble: Spoon the warm nut caramel into the chilled crust and smooth the surface. Lift the chilled lid onto the tart, press to seal, and trim any excess. Crimp the edge decoratively and cut a few small vents in the center. Brush the top with a little beaten egg for shine.
7. Bake: Preheat the oven to 180°C. Bake on the lower-middle rack until the top is deep golden and the edges are set, about 30–35 minutes. Cool in the pan on a rack until completely set, at least 3–4 hours. For the cleanest slices and classic flavor development, let the tart rest at cool room temperature for 12–24 hours before serving.

Serving and pairing

Slice into modest wedges; this rich tart is best enjoyed in small servings at room temperature. It pairs beautifully with coffee or black tea, and a spoonful of lightly whipped cream underscores the caramel notes. A dusting of powdered sugar is traditional in some bakeries, but the sealed, glossy top is equally classic as-is.

Tips and troubleshooting

• Dough handling: If the dough feels sticky, chill it briefly; if it cracks, press it back together or patch with scraps. Avoid overworking to maintain a tender bite.
• Caramel color: Aim for a robust amber for depth of flavor. If it darkens too far, start over; bitterness will dominate.
• Seizing fix: If the caramel seizes when you add the warm mixture, keep it over low heat and whisk until smooth again; patience brings it back.
• Sealing the lid: Press the lid to the base all around so the filling stays contained; a neat crimp also helps prevent leaks.
• Clean slices: Resting time firms the interior; a long, sharp knife warmed briefly in hot water and wiped dry will give tidy edges.

Make-ahead and storage

The tart keeps well, tightly wrapped at cool room temperature, and its flavor deepens after a day. For longer storage, wrap and freeze; thaw unwrapped on a rack so the crust stays crisp.

Why this method works

Chilling the dough limits shrinkage and ensures crispness. Toasting the walnuts wakes up their natural oils for fuller aroma. Making a proper caramel with sugar and enriching it with honey and cream delivers a plush texture that sets sliceably without turning hard. The sealed lid prevents over-reduction in the oven, keeping the interior luscious.