Dulce de leche

Dulce de leche (Spanish: [ˈdulse ðe ˈletʃe, ˈdulθe]), caramelized milk, milk candy, or milk jam is a confectionery popular in Latin America, France, Poland, and the Philippines prepared by slowly heating sugar and milk over several hours. The substance takes on a spreadable, sauce-like consistency and derives its rich flavour and colour from non-enzymatic browning.^[1][2] It is typically used to top or fill other sweet foods.

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Dulce de leche

Alternative names	Caramelized milk, milk candy, milk jam
Type	Confectionery
Region or state	Latin America, Philippines, France, Poland
Main ingredients	Milk, sugar
Cookbook: Dulce de leche   Media: Dulce de leche

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Since 1998, and at the initiative of the Argentine Center for the Promotion of Dulce de Leche and Related Products, International Dulce de Leche Day is celebrated every October 11.^[3]

Spanish dulce de leche and Portuguese doce de leite (Portuguese: [ˈdosi dʒi ˈlejtʃi]) mean "sweet [made] of milk". Other names in Spanish include manjar ("delicacy"), arequipe and leche quemada ("burnt milk", a term popular in Mexico); also in Mexico and some Central American countries dulce de leche made with goat's milk is called 'cajeta'.^[a][4]

In the Philippines, dulce de leche made with carabao (water buffalo) milk is called dulce gatas,^[5] and is a specialty of Negros Occidental province.^[6]

In French, it is called confiture de lait (milk jam). In France, it is traditional in the regions of Normandy and Savoy, where it is commonly served with fromage blanc or crêpes.^[7]

The same confectionery is also known as kajmak in Polish cuisine, named after Turkish kaymak, a kind of clotted cream. Kajmak is most commonly used for wafers or the mazurek pie traditionally eaten at Easter.^[8]

There are various stories about its origin. Some reports say it originated in Indonesia in the 6th century.^{[9][additional citation(s) needed]} Later it would have being brought to the Philippines, Spain, and finally into Latin America.^[9] Apocryphal stories also suggest it was brought to the Americas by important historical figures like Napoleon or Argentinian general Juan Manuel de Rosas.^[9]

In 2003, Argentina attempted to declare dulce de leche as national patrimony but countries across South America and Central America objected due to its popularity all over the continent.^[9]

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Making dulce de leche in a rotating copper vessel, in Mexico

Consistency of dulce de leche made from boiling condensed milk in a can

The most basic recipe calls for slowly simmering milk and sugar, stirring almost constantly until the sugar dissolves (baking soda then can be added), after more constant stirring (between 1.5 – 2 hours) until the mixture thickens and finally turns a rich brown golden-brown colour.^[13]

Other ingredients such as vanilla may be added for flavor. Much of the water in the milk evaporates and the mix thickens; the resulting dulce de leche is usually about a sixth of the volume of the milk used. The transformation that occurs in preparation is caused by a combination of two common non-enzymatic browning reactions called caramelization and the Maillard reaction.^[1][2]

Another method of preparation, similar to Russian boiled condensed milk known as "varyonaya sgushchyonka", involves using canned or boxed sweetened condensed milk and cooking it in a pressure cooker for 20 to 25 minutes for a light color and slightly soft consistency, or 40 to 45 minutes for a darker color and firmer consistency. If using condensed milk from a box, it should be wrapped in about 5 to 6 layers of aluminum foil to prevent it from bursting.^[14][15]

It is also possible to place the condensed milk in a glass jar and boil it in the pressure cooker. In this method, different ingredients can also be added to the sweetened condensed milk, such as shredded coconut or peanuts. However, certain precautions need to be taken, such as wrapping the jar with a kitchen towel and lining the pressure cooker with another kitchen towel so that the bottom of the jar does not touch the cooker (as contact may cause the glass to shatter). The cooking time is similar to the previous method (around 35 to 40 minutes).^[16][17] Water should be added to the pressure cooker – enough to cover the cans, boxes, or jars of condensed milk. A small amount of vinegar can be added to the water in the pressure cooker to prevent it from becoming discolored at the bottom. In all cases, once ready, it is important to let the dulce de leche cool completely, which takes about 2 hours.^[14][16]

Dulce de leche can be eaten alone, but is more commonly used as a topping or filling for other sweet foods, such as cakes, churros, cookies (see alfajor), waffles, flan cakes (aka crème caramel (known as pudim among Portuguese-speakers) (not to be confused with British pie-like variant of flan), fruits like bananas and candied figs, and ice creams; it is also a popular spread on crepes (panqueques), obleas (wafers), and toast.

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  Dulce de leche pot
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  Muffins
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  Crème caramel, a variant of a flan cake
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  Banoffee pie
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  Corn starch alfajor
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  Dulce de leche roll
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  Dulce de leche in glass jars