| 14 fl.oz/420 ml tin condensed milk | Place all the ingredients in a large pan and bring to the boil. Reduce the heat Simmer gently for 30 - 40 minutes, stirring occasionally. As it starts to darken, stir continuously, ensuring it doesn't stick to the bottom of the pan When it is a dark caramel colour remove from the heat and whisk hard (preferably with an electric whisk) Keep whisking until the mixture cools and begins to thicken. |