By Lulu Grimes
Dulce de leche is an Argentinian speciality originally made by caramelising sugar in milk for many hours. Today, it is often made by boiling a tin of sweetened condensed milk to thicken and reduce the milk. When cooled, it can be eaten from the tin, used as a dip for fruit or spooned over ice cream.
To make dulce de leche, pierce the top of a tin of condensed milk a few times (so the ti