Gianduia chocolate: an excellence of Piedmont

From crisis to icon: the historical origins of Gianduia

The birth of gianduia is traditionally placed in the Napoleonic period. Due to the continental blockade imposed by Napoleon (1806-1814), the import of cocoa became more expensive and discontinuous. The Turin chocolatiers then decided to mix cocoa with the  local hazelnut, abundant and of excellent quality, thus creating a product destined to become an icon of world confectionery.

The name 'gianduia' derives from  Gianduja, a Piedmontese carnival mask symbolizing conviviality and prosperity. In 1865, on the occasion of the  Turin Carnival, the company Caffarel distributed the first gianduiotti, pralines with the characteristic boat shape individually wrapped in golden foil, which would mark the history of Italian confectionery (Squicciarini & Swinnen, 2016).

Beyond the legend, historical studies confirm that the addition of hazelnut paste to chocolate was established in the nineteenth century as a technical and economic response to the scarcity of cocoa.  industrial revolution also brought decisive innovations: the mixer developed by Michele Prochet in 1852 allowed obtaining a finer and more homogeneous paste, while the  Conching – introduced by Rodolphe Lindt in 1879 – drastically improved the texture and aroma of the final product (Beckett, 2018).

Legal standards and composition: what defines the true Gianduia

Directive 2000/36/EC, transposed in Italy by the  Legislative Decree 178/2003 – concerning the regulation of cocoa and chocolate products intended for human consumption – defines

• ‘«Chocolate gianduia hazelnut» (or one of the derivatives of this term)’ as ‘the product obtained,

• on the one hand, from chocolate whose minimum total dry cocoa content is 32% and defatted dry cocoa content is 8%, and,

• on the other hand, from  finely ground hazelnuts, in such proportion that 100 grams of product contain no more than 40 and no less than 20 grams of hazelnuts. May be added:

1)  milk and/or milk solids obtained by evaporation, in such proportion that the finished product does not contain more than 5% milk solids;

2)  almonds, hazelnuts and other varieties of nuts, whole or in pockets, in such proportion that their weight, added to that of the ground hazelnuts, does not exceed 60% of the total product weight’.

Recent sensory analyses have shown that toasted hazelnuts at temperatures between 130-150°C for 20-30 minutes develop the maximum aromatic potential without compromising the lipids (Kiefl et al., 2013).

Technical note: chocolate vs spreadable cream

It is appropriate to distinguish gianduia hazelnut chocolate (solid product) from spreadable creams with gianduia. While the former must comply with the strict parameters of directive 2000/36/EC (minimum 20% hazelnuts and prohibition of vegetable fats other than cocoa butter above 5%), the spreadable creams fall under the general regulation of confectionery products.

In this case, the quality is defined by the order of ingredients on the label, and their respective quantities: in premium products, hazelnut should appear as the first ingredient (often with percentages even up to 40%), unlike ‘low price’ products where sugar and vegetable oils prevail.

Production technique: from roasting to perfect tempering

The production of gianduia chocolate is articulated in the following phases:

1. Selection and roasting of hazelnuts, to develop characteristic aromas (notes of caramel, butter, vanilla) and reduce humidity from 5-6% to 1-2%;

2. Dehusking and grinding until obtaining a fluid paste with granulometry below 25 microns;

3. Mixing with cocoa mass (at least 32% according to directive 2000/36/EC), sugar and cocoa butter;

4. Conching, a crucial phase of 12-72 hours at 50-80°C that homogenizes ingredients, reduces acidity, develops complex aromas and improves texture through viscosity reduction (Afoakwa et al., 2008);

5. Tempering (controlled pre-crystallization of cocoa butter between 28-31°C) to obtain stable beta-V crystalline form, ensuring gloss, snap (characteristic sound of chocolate breaking) and resistance to bloom (whitish coating that can form on the chocolate surface);

6. Molding final (bars, gianduiotti, spreadable creams).

The quality of gianduia depends decisively on  final granulometry (below 30 microns for a silky perception on the palate), the control of processing temperatures and the quality of raw materials (Beckett et al., 2017).

From the bar to gourmet preparations: professional uses

The  gianduia chocolate used in:

• praline making and traditional gianduiotti,

• spreadable creams premium,

• fillings for bakery products (croissants, cream puffs, panettones),

• ice cream parlour (gianduia-flavored ice cream, swirls),

• fine pastry (cakes, mousse, ganache, entremets).

In contemporary gastronomy, gianduia chocolate is also used in gourmet savory preparations, such as sauces for  red meats or pairings with  aged cheeses (Parmesan Reggiano over 36 months), where the toasted hazelnut component balances intense umami flavors.

Buying guide: how to read the label and choose the best

For foodies

• Prefer products with  high hazelnut percentage (≥30%).

• Choose versions  organic, which guarantee the highest environmental sustainability standards.

• Verify theorigin of the hazelnuts and absence of vegetable fats other than cocoa butter.

• Check theingredient list: the best gianduias contain only hazelnuts, cocoa, sugar, possible milk and sunflower or soy lecithin.

For professional buyers

• Request  detailed technical specifications (hazelnut percentage, cocoa origin, and sustainability certifications such as Fairtrade and Rainforest Alliance).

• Evaluate suppliers with certifications  organic and recognized food safety standards (IFS Food, BRCGS, ISO 22000).

• Consider the  oxidative stability (peroxide index

• Verify the accuracy of the declaration on the presence of  allergens, which must list individual tree nuts and not generically refer to the category ‘tree nuts with shell’.

The team of  GIFT (Great Italian Food Trade) offers consolidated expertise in supporting international buyers in selecting reliable Italian producers, with particular attention to traceability, certifications, and organoleptic quality.

Conclusions

In a market increasingly oriented towards ‘premiumisation’ and transparency, gianduia chocolate remains a cornerstone of Made in Italy capable of evolving without losing its identity. Protecting raw materials, such as Italian hazelnuts, and strict respect for the proportions between cocoa and nuts remain the only guarantees of an inimitable sensory experience. Choosing authentic gianduia means rewarding a supply chain that blends artisanal knowledge, food safety, and agricultural sustainability.

Editorial staff of GIFT (Great Italian Food Trade)

References

• Afoakwa, E. O., Paterson, A., Fowler, M., & Vieira, J. (2008). Characterization of melting properties in dark chocolates from varying particle size distribution and composition using differential scanning calorimetry.  Food Research International, 41(7), 751–757.  https://doi.org/10.1016/j.foodres.2008.05.009

• Beckett, S. T. (2018). The science of chocolate (3rd ed.). Cambridge, UK: Royal Society of Chemistry. ISBN 978-1-78262-859-1.

• Beckett, S. T., Fowler, M. S., & Ziegler, G. R. (2017). Beckett’s industrial chocolate manufacture and use (5th ed.). Chichester, UK: Wiley-Blackwell. ISBN 978-1-118-78407-6.

• Legislative Decree 12 June 2003, no. 178. Implementation of Directive 2000/36/EC relating to cocoa and chocolate products intended for human consumption. Normattiva.  https://www.normattiva.it/esporta/attoCompleto?atto.dataPubblicazioneGazzetta=2003-07-18&atto.codiceRedazionale=003G0203

• Directive 2000/36/EC of the European Parliament and of the Council of 23 June 2000 relating to cocoa and chocolate products intended for human consumption. Consolidated text: 18/11/2013 http://data.europa.eu/eli/dir/2000/36/2013-11-18

• Kiefl, J., Pollner, G., & Schieberle, P. (2013). Sensomics analysis of key hazelnut odorants (Corylus avellana L. ‘Tonda Gentile’) using comprehensive two-dimensional gas chromatography in combination with time-of-flight mass spectrometry (GC×GC-TOF-MS).  Journal of Agricultural and Food Chemistry, 61(22), 5226–5235.  https://doi.org/10.1021/jf400807w

• Squicciarini, M. P., & Swinnen, J. (2016). The economics of chocolate. Oxford, UK: Oxford University Press. ISBN 978-0-19-872644-0.