Weigh out all of your ingredients and throw them all in a saucepan. Better yet weigh it in the saucepan to save on the washing up!
Cook on low, stirring until the sugar and butter has melted. This should only take a couple of minutes.
Turn the heat up to medium-high and then leave it for a few minutes to bubble up, but not boil over. This should only take about 2-3 minutes and you’ll be left with a thick golden syrupy sauce.
When this has finished just turn it off the heat and leave it to cool for 5-10 minutes before you serve it.