Preheat the oven to 160°C (325°F/Gas 3). Line 2 baking trays.
Place the nuts, sugar, butter and egg white in a medium saucepan and cook, stirring constantly, over low
heat until the butter has melted and the mixture is combined. Remove from the heat and allow to cool.
Place heaped teaspoons of the mixture onto the prepared trays, allowing enough space for them to spread.
Bake for 15 minutes or until golden brown and just firm to the touch. Allow to cool for 10 minutes on the baking tray before transferring to a wire rack.