Preheat oven to 180°C/350°F (160°C fan-forced). Line a large tray with foil then baking paper (parchment).
Put the nuts in a bowl.
Put the butter in a small saucepan over medium heat. Once mostly melted, add all the remaining candied coating ingredients. Stir, then once it comes to a simmer, reduce stove to medium low so it's simmering gently for 2 minutes, stirring regularly so it doesn’t catch.
Pour over the nuts, toss well – take about 30 seconds, use a rubber spatula. It should be quite thick and coat the nuts well, no runny caramel pooling at bottom of bowl.
Spread on tray, bake for 20 minutes, tossing well at the halfway mark, until the nuts are deep golden. There should be hardly any candy coating liquid left on the tray.
Cool undisturbed on the tray for 10 minutes then break it up while still warm. Then leave to fully cool on the tray – the candy coating will fully harden (about 30 minutes).
