
Candied and glacé fruit
Candied fruit is fruit that has been repeatedly steeped in concentrated sugar syrup, which replaces part of its water with sugar, often followed by drying. It differs from fruit served in a thin syrup.
Mostarda · Mostarda di Cremona, Mantova and Voghera · Mostarda di Cremona
A northern Italian condiment of candied fruit in syrup, flavoured with mustard. Its earliest documented link to Cremona is an 1604 printed recipe, which dates the record, not the invention.

Mostarda is a fruit condiment rather than a table mustard. Fruit is candied slowly in a sugar syrup and then given its heat with mustard essence, which is a strong flavouring and is not dosed by guesswork.
Mostarda di Cremona is one of several regional forms of the condiment, named for Cremona, Mantua and Voghera. Each has its own fruit mix and its own tradition of how the mustard is added.
The 1604 recipe in Ouverture de cousine is the earliest document that ties mostarda to Cremona. Cremona's own notes describe it as close to the modern recipe. Later Cremona records, including a recipe from 1666 and one in a manual of 1884, list fruit and honey or sugar with mustard, and their fruit lists differ.
Accounts do not agree on the exact fruit lists or on where the 1604 text was printed. Most accept the Liege print as the earliest documented link to Cremona.
Slow candying in syrup preserves the fruit by sugar and gives it a glossy, soft texture. The mustard is added after candying so that its heat does not cook away in the syrup. Adding it with care matters because mustard essence is strong.
Modern records do not give quantities or temperatures for the syrup. The stages are the regional method as described in regional sources, not a validated process.
Mostarda is served with boiled meats and cheese. Its sweet and hot balance is the point of the condiment, and its use is the reason the recipe persists in the region.
The earliest documented link to Cremona is a recipe titled Pour faire moutarde de Cremone in Ouverture de cousine by Lancelot de Casteau, printed in Liege in 1604. Municipal notes from Cremona say it is not very different from today's recipe. Later Cremona records include a 1666 recipe and a manual of 1884. The 1604 date is the earliest dated attestation, not the invention date.
No source in this record establishes a place.
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Comune di CremonaHistory · Method
Disciplinare della Mostarda di CremonaMunicipal notes state that the 1604 recipe is not too different from today's in its ingredients.
The 1604 printed recipe is titled Pour faire moutarde de Cremone in Ouverture de cousine by Lancelot de Casteau, Liege.
Cited in: The Cremona record
ItaloamericanoHistory
La mostardaOverview of mostarda as a fruit and mustard condiment and its Italian regional forms.
Cited in: What mostarda is
The NibbleMethod · Uses
Tip of the day: mostarda, a sweet hot Italian condimentMostarda is a sweet and hot fruit condiment served with boiled meats and cheese.
Cited in: What mostarda is; Why the process has its stages; Eating it