Engadiner Nusstorte.
Engadine Caramel Walnut Tart
Engadiner Nusstorte / Tuorta da nuschs engiadinaisa · say it: en-gah-DEE-ner NOOSS-tor-teh
Engadiner Nusstorte is a completely enclosed shortcrust tart filled with walnuts bound in a dark cream caramel. There is no fruit, no spice and no leavening — just pastry, sugar cooked to a deep amber, cream and a great many nuts, which makes it much closer to a confection than to a cake. Cut into it and the filling should be chewy and slightly sticky rather than runny or set hard, with the faint bitterness of properly dark caramel behind the sweetness and the walnuts still crunchy in the middle. The pastry is thick, sandy and buttery and functions as a wall as much as a crust. It is the durable travelling cake of Graubünden, and it genuinely tastes better three days after you bake it than on the day.
- Gate
- SwitzerlandEngadine, Graubünden
- Prep
- 45 min
- Cook
- 45 min
- Total time
- 26 hr 30 min incl. 25 hr rest
- Serves
- 12
- Status
- Takes skill
- Nutrition / serving · estimated
- Calories 520 kcal
- Protein 7 g
- Carbs 52 g
- Fat 33 g
- Fiber 2 g
- Sugar 33 g
- Sodium 120 mg
Why this recipe works.
- A dry caramel taken to a genuinely dark amber, with clear colour and smell cues so it stops short of burnt.
- Honey in the filling as insurance against crystallisation, which is what turns a home Nusstorte gritty.
- A pastry rich enough to press into the tin by hand, so there is no rolling and no cracking to patch.
- Says plainly that the tart needs a day or three before it is at its best, rather than pretending it is ready warm.
Ingredients.
11 itemsFor the pastry
For the filling
Equipment
- 24 cm tart or springform tin
- Heavy-based saucepan at least 3 litres
- Rolling pin
- Pastry brush
Instructions.
Make the pastry
Rub the cold butter into the flour, sugar, lemon zest and salt with your fingertips until the mixture looks like coarse breadcrumbs with a few larger flakes. Add the whole egg and bring it together into a dough with as few movements as possible — it should be soft and slightly sticky, not smooth.
Tip Stop working it the moment it holds together. Over-kneaded shortcrust bakes hard instead of sandy.
Chill it
Divide the dough into two pieces, one slightly larger than the other, flatten both into discs, wrap and refrigerate for at least 1 hour. The larger piece will line the tin, the smaller one becomes the lid.
Toast the walnuts
Spread the walnuts on a tray and toast at 170 C for 8 to 10 minutes, until they smell strongly nutty and the skins have darkened and loosened. Tip them into a cloth, rub off what skin comes away easily, then chop them roughly — halves into thirds, no finer.
Make the caramel
Put the sugar in a large heavy pan over medium heat and let it melt without stirring, swirling the pan as the edges liquefy. Cook for 8 to 10 minutes until it is a deep amber the colour of an old copper coin and smells of toffee with the faintest edge of smoke.
Tip Have the warm cream in a jug right beside the pan. From the correct colour to burnt is about fifteen seconds.
Add the cream and nuts
Take the pan off the heat and pour in the warm cream in a steady stream — it will erupt and hiss violently, so stand back. Whisk until smooth, return to low heat, stir in the honey and cook for 2 minutes until glossy. Fold in the walnuts and the flaky salt, then pour into a bowl and cool to room temperature.
Tip Do not skip the cooling. Warm filling melts the butter in the raw pastry and you get a leaking base.
Line the tin
Roll or press the larger pastry disc into a 24 cm tin, covering the base and coming 3 cm up the sides in an even layer about 5 mm thick. Patch any thin spots with offcuts — this dough is forgiving and does not need to look neat inside.
Fill and seal
Spoon in the cooled walnut caramel and level it, leaving the top centimetre of the pastry wall clear. Roll the second disc into a circle to fit, lay it over the filling, and press the edges together firmly all the way round, trimming any excess.
Glaze and bake
Brush the top with the beaten egg yolk, prick it in several places with a fork and score a simple pattern into the surface. Bake at 180 C for 35 to 40 minutes until the top is an even deep gold and firm to a light press.
Cool completely, then wait
Leave the tart in its tin until completely cold — several hours — before turning it out, or the hot filling will run. Then wrap it and leave it at room temperature for a day or three before cutting, which is when the pastry softens against the caramel and the tart is at its best.
Tips from our kitchen.
- Toast the walnuts and rub off what skin comes loose. Untoasted walnut skins carry a tannic bitterness that fights the caramel instead of complementing it.
- Warm the cream before it goes into the caramel. Cold cream hitting hot sugar seizes it into a solid lump that takes ages to melt back down.
- Stand back when you add the cream — the caramel erupts violently for a few seconds. Use a pan at least three times the volume of the sugar.
- Cool the filling to room temperature before it goes into the pastry, or it will melt the base and you will get a soggy, leaking tart.
- Seal the lid properly. Press the edges together firmly and prick the top, or the filling boils out through a gap and welds the tart to the tin.
- Wait. A Nusstorte cut on the day it is baked is crumbly and the filling is loose; after two or three days in a tin the pastry softens slightly and the whole thing comes together.
Substitutions.
- Walnuts → A mix of walnuts and hazelnuts, or all hazelnuts
- Hazelnut versions are made in the region and are sweeter and rounder. Pecans work too. Do not use pre-chopped nut pieces, which are usually stale and taste of old oil.
- Heavy cream → Full-fat coconut cream
- Makes a dairy-free filling that sets in almost the same way, with a faint coconut note that suits the caramel better than you would expect. The pastry still needs a solid vegan block butter.
- Honey → Golden syrup or glucose syrup
- Any invert sugar does the same job of keeping the caramel from crystallising. You can leave it out entirely, but the filling is then more prone to going grainy over a week in the tin.
Variations.
- Hazelnut Nusstorte
- Made with toasted hazelnuts instead of walnuts, which gives a sweeter, less tannic filling. Common in Graubünden bakeries alongside the walnut original.
- With a splash of kirsch
- A tablespoon of kirsch or Williams pear brandy stirred into the cooled caramel, which sharpens the finish and cuts the sweetness.
- Individual tartlets
- Built in muffin tins as small sealed tarts, which bake in about 20 minutes and travel even better than the full one.
Storage & reheating.
This is a tart built to keep. Wrapped in foil or kept in a tin at room temperature it holds for at least 2 weeks and is at its best from day 3 onward, once the pastry has softened against the filling. Do not refrigerate it — the cold makes the caramel hard and the pastry damp. It freezes whole for 3 months, wrapped tightly, and thaws overnight at room temperature with no loss of texture. Cut slices dry out at the edge, so store what is left cut side down against the tin.
Serve with
Thin slices with strong black coffee, or with unsweetened whipped cream if you want to soften the sugar.
The story behind Engadiner Nusstorte.
The Engadine is a high valley in Graubünden, running along the Inn river toward the Italian and Austrian borders, and it has one of the more unusual economic histories in the Alps. For centuries its people emigrated — thousands of Engadiners left to work as confectioners and café owners across Europe, from Venice to Warsaw to Marseille, in a diaspora so well established that the region's pastry tradition is really a European one that came home. The Nusstorte as it exists today took shape in the early twentieth century in that context, in the hands of bakers who had trained in the sugar work of foreign cities.
Everything about its construction is aimed at keeping. Sugar cooked into caramel and bound with cream is essentially a preserve; walnuts store all winter; a solid pastry shell top and bottom seals the whole thing from air. The result is a tart that survives weeks in a tin and a long journey in a rucksack, which is exactly what a valley of emigrants and mountain travellers needed. Bakeries in St Moritz, Samedan and Scuol still sell it boxed for exactly that purpose, and it has become the standard edible souvenir of Graubünden.
The old Romansh name is tuorta da nuschs engiadinaisa, and although the tart is now made across Switzerland, Engadine bakers keep a set of quiet distinctions: the caramel should be taken dark enough to have a bitter edge, the walnuts should be roughly chopped rather than ground, and the top crust should carry a simple pattern or the baker's mark rather than a lattice. Home versions vary in one useful respect — some add a spoonful of honey to the caramel, which keeps the filling softer and stops it crystallising in the tin. That is the version below, because a home cook without a bakery oven benefits from the insurance.
Questions, answered.
How dark should the caramel go?
To a deep amber, roughly the colour of an old copper coin, and it should smell of toffee with a faint edge of smoke just before you stop it. A pale golden caramel makes a sweet, one-dimensional filling. The line between dark and burnt is about fifteen seconds wide, so have the warmed cream standing next to the pan ready to go in the moment the colour is right.
Why did my filling turn grainy?
The sugar crystallised, usually because it was stirred while melting or because a stray crystal from the side of the pan fell back in. Swirl the pan rather than stirring, brush the sides down with a wet pastry brush if crystals form, and include a spoonful of honey or glucose syrup, which physically interferes with crystal formation and is why this recipe uses it.
Why is my Nusstorte hard to cut?
Either the caramel was cooked too long before the cream went in, or the tart was refrigerated. An over-cooked caramel sets to a brittle candy rather than a chewy filling. Cold makes any caramel hard, so always store the tart at room temperature and let a chilled one come back to room temperature for a few hours before slicing.
How long does Engadiner Nusstorte keep?
At least two weeks in a tin at room temperature, and often longer. That durability is the entire point of the design — a sealed pastry shell around a sugar-preserved filling was made to survive long journeys out of an alpine valley. It is genuinely better after two or three days, once the pastry has softened slightly against the caramel.
Do I need to blind-bake the base?
No, and you should not. The filling goes in cool and thick rather than wet, so it does not soak the pastry, and blind-baking a base that will bake again for another 40 minutes leaves it dry and over-coloured. What does matter is that the filling is fully cooled before it goes in, since warm caramel will melt the butter in the raw pastry.
Can I make this without a tart tin?
Yes. A 24 cm springform tin works well, and so does a straight-sided cake tin lined with parchment, though you will need to press the pastry a little higher up the sides. Avoid a loose-bottomed tin without lining it, since any caramel that escapes through a gap in the seal will run out of the bottom and burn on the oven floor.
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Recipe by The DishRoute Kitchen · published August 19, 2026 · updated August 19, 2026