Step 1

Heat a pan over medium high heat and place the walnuts in the pan. Roast for 3-5 minutes, until lightly browned, stirring often to avoid the walnuts burning. Set aside for now.

Step 2

In a small bowl, mix together the brown sugar, white sugar, salt and cayenne pepper. Add the water and mix again. Pour in a cold pan and place over medium heat. Bring to a boil and let simmer for 5-10 minutes, until golden brown and all the sugar has melted. Take care so that the sugars don't burn . Do not stir after the mixture has started boiling - if it browns unevenly, instead tip the pan a bit to mix.

Step 3

Add in the walnuts and mix, and then pour them onto a baking sheet placed on a heat resistance surface, and spread them out in a single layer. Leave to cool for at least 5-10 minutes.