Add the coconut milk and sugar into a heavy bottomed saucepan

Heat it on a low heat until the sugar has dissolved

Once all of the sugar has dissolved bring the mix to a simmer over low/medium heat. Do not stir once the mix starts to simmer otherwise it can crack and crystalize

Gently simmer for roughly 30- 40 minutes, or until the milk has darkened to an almost grey color,has reduced by half and thickened (After about 15 minutes, you'll notice that the milk will start to turn dark and thicken – that's ok and is exactly what's supposed to happen)

When ready, remove from the heat and pour into a jar to cool. (if there are sugary bits hanging around the rim of your pot don’t stir them into your condensed milk, this can also crack your mix)

Let the condensed milk cool completely before putting on the air tight lid.

Store in a jar in the fridge and it will last for months. Don't forget to label it. :)