Place the caster sugar in a hot frying pan and leave to caramelise without stirring. Tilt the pan from side to side to ensure the sugar melts evenly and allow to darken to a deep dark golden colour.
Reduce to a low heat and add the butter. Allow to melt before adding the double cream and salt, mixing well.
Serve a generous drizzle over ice cream or gooey chocolate brownies.
«Use a stainless steel frying pan when making caramel, this will allow you to see the colour of the caramel.»