Preheat oven to 150°C. Line a slice tin or small roasting dish with baking paper, set aside.

Melt the butter, sugar, golden syrup and speculaas spice in a small saucepan over a medium-low heat. Stir continuously for a few minutes until the sugar is dissolved and the mixture is very smooth. Don’t let it boil.

Add the nuts and salt and stir briskly to combine. Pour nut mixture into the prepared dish, spread out into an even layer and bake in preheated oven for 20-30 minutes or until nuts are golden brown, but not burnt. Remove from oven and allow to cool completely - it should go nice and crunchy. If it’s still a bit chewy, you can cook the nuts for a further 5-10 minutes.

Break into pieces and serve.