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Torta di nocciole piemontese is a Piedmontese hazelnut cake built almost entirely on ground toasted hazelnuts, with just enough egg and flour to hold it together. The result is dense at the edges, soft in the center, and it tastes like the nut itself rather than a sweet cake with nuts added.
Piedmont grows some of Italy’s best hazelnuts, the tonda gentile variety, and this cake is the region’s way of showing them off with almost nothing else getting in the way. Sugar, eggs, a little butter, a spoon of flour. That’s most of it.
I whip the egg whites separately and fold them in at the end. Skip that step and the cake bakes flat and dense, more like a nut brick than something you’d want a second slice of.
Serve it plain with a dusting of powdered sugar, or with lightly whipped cream if you want something less austere.
Why You’ll Love This Recipe
- Needs only a few pantry staples besides hazelnuts
- Naturally light on flour, easy to adapt gluten free
- Tastes better on day two once flavors settle
- Freezes well whole or sliced for later
Ingredient Notes
- hazelnuts: Use raw hazelnuts and toast them yourself for the best flavor; pre-roasted ones work but taste flatter.
- eggs: Separate them while cold, they split cleanly, then let both whites and yolks come to room temperature before beating.
- granulated sugar: Split it between the ground hazelnuts and the yolks; grinding nuts with a little sugar keeps them from turning oily.
- butter: Melted and cooled butter blends into the yolk mixture without deflating it; olive oil works but changes the flavor.
- flour: Just enough to bind the batter; swap in the same weight of fine rice flour or cornmeal for a gluten-free version.
- baking powder: Gives a slight lift since there’s so little flour to work with.
- lemon zest: Cuts through the richness of the nuts; orange zest is a fine substitute.
- powdered sugar: For dusting only, added after the cake cools completely so it doesn’t melt into the crumb.
Rustic Torta di Nocciole (Piemontese Hazelnut Cake)
Ingredients
Method
- Heat the oven to 170 C / 340 F. Butter a 23 cm / 9-inch springform pan, line the base with parchment, and dust the sides with flour.
- If your hazelnuts aren't pre-toasted, spread them on a sheet pan and toast at 175 C / 350 F for 10 to 12 minutes until the skins crack and they smell toasted. Rub the warm nuts in a clean towel to remove the skins.
- Pulse the cooled hazelnuts with 2 tbsp of the sugar in a food processor until finely ground, stopping before the mixture turns to paste.
- Beat the egg yolks with the remaining sugar in a large bowl until pale and thick, about 3 minutes.
- Beat in the melted butter, ground hazelnuts, flour, baking powder, and lemon zest just until combined.
- In a separate clean bowl, whip the egg whites with the pinch of salt to soft peaks.
- Fold the whites into the batter in three additions, cutting gently through the mixture rather than stirring, to keep the air in.
- Pour the batter into the prepared pan and smooth the top. Bake for 35 to 40 minutes, until a toothpick comes out with a few moist crumbs and the edges pull away from the pan sides.
- Cool in the pan on a rack for 15 to 20 minutes, then release the springform and cool the cake completely on the rack.
- Dust with powdered sugar just before serving.
Notes
- Grind hazelnuts with a portion of the sugar to prevent an oily paste
- Whip egg whites just to soft peaks, no further
- Cool the cake fully in the pan before releasing the springform
- Dust with powdered sugar right before serving, not before
Tips for Success
- Toast the hazelnuts at 175 C / 350 F for 10 to 12 minutes until the skins crack, then rub them off in a towel.
- Grind the nuts with a spoonful of the measured sugar so the oils don’t turn them into paste.
- Fold the egg whites in three additions, cutting through the batter rather than stirring, to keep the air in.
- Check doneness at 35 minutes; a toothpick should come out with a few moist crumbs, not wet batter.
- Let the cake cool fully in the pan before releasing the springform, since it’s fragile while warm.
Variations
- Add 60 g of chopped dark chocolate to the batter for a torta di nocciole al cioccolato, common in Piedmontese bakeries.
- Swap the lemon zest for a tablespoon of rum or Frangelico stirred into the yolk mixture for a boozier crumb.
- Top with a thin layer of dark chocolate ganache once cool instead of powdered sugar for a richer finish.
Storage and Reheating
Torta di nocciole piemontese keeps well at room temperature in an airtight container for 3 to 4 days. It actually improves on day two, once the crumb settles and the hazelnut flavor comes through more clearly.
Refrigerate it up to a week if your kitchen runs warm, tightly wrapped so it doesn’t dry out. Bring slices back to room temperature before serving so the texture isn’t stiff from the fridge.
To freeze, wrap the whole cake or individual slices in plastic then foil and freeze up to 3 months. Thaw overnight at room temperature and dust with fresh powdered sugar before serving.
Serving Suggestions
Serve torta di nocciole piemontese plain with a dusting of powdered sugar and a small espresso alongside. That’s how it’s usually eaten in Piedmont, as an afternoon or after-dinner slice rather than a fussy dessert.
A glass of Moscato d’Asti or a light dessert wine works well against the dense, nutty crumb. For something less austere, add a spoon of lightly whipped cream or mascarpone on the side.
In fall, a spoonful of stewed pears or a drizzle of honey on the plate plays nicely with the toasted hazelnut flavor.
FAQ
Why did my torta di nocciole turn out flat and dense instead of light?
Flat, dense results usually mean the egg whites weren’t whipped enough or got overfolded into the batter. Whip whites just to soft peaks, then fold in three additions, cutting gently so you keep the air in. Overprocessing the ground hazelnuts into paste instead of a fine meal also weighs the batter down.
Can I use almonds instead of hazelnuts in this cake?
You can swap in an equal weight of blanched almonds, the same base used in soft almond fave dei morti cookies, though the flavor shifts away from what makes torta di nocciole piemontese distinct. Almonds bake up a bit drier, much like the toasted nuts in Neapolitan susamielli cookies, so add an extra tablespoon of melted butter. Toast them the same way, 10 to 12 minutes at 175 C / 350 F.
Can I freeze torta di nocciole piemontese?
Yes, this cake freezes well whole or sliced. Wrap it tightly in plastic then foil, freeze up to 3 months, then thaw overnight at room temperature before dusting with powdered sugar. It actually tastes better on day two, once the crumb settles and the hazelnut flavor deepens.
What goes well with Piedmontese hazelnut cake besides powdered sugar?
A glass of Moscato d’Asti or a shot of espresso works well alongside torta di nocciole, since both cut through the richness of the nuts. Lightly whipped cream or a spoon of mascarpone on the side also softens the dense crumb without covering the hazelnut flavor.
Is torta di nocciole piemontese gluten free?
Not as written, since it has 50 g of flour, but it’s easy to adapt. Swap the flour for the same weight of fine rice flour or cornmeal and check your baking powder is gluten free. The cake is naturally low in flour to begin with, so the swap barely changes the texture.
What’s the difference between torta di nocciole and torta caprese?
Torta di nocciole is a Piedmontese cake built on hazelnuts with little or no chocolate, while torta caprese from Capri is a flourless almond and dark chocolate cake. Both lean on ground nuts and whipped eggs for structure, but the flavor and origin point to different regions of Italy entirely.