Preheat the oven to 300 deg F, and line a roasting tray with parchment
Place the honey and butter (or coconut oil) in a pan and heat gently until combined. Add one tablespoon of spice rub, and stir in the nuts/snack mixture.
Spread the mixture on the parchment lined roasting tray, and roast for about 20 minutes, giving the mixture a stir at 10 minutes. Keep an eye on the mixture – it should be brown, not burnt.
Leave the mixture cool for 2 minutes, then place in a bowl. Whip up the egg white until frothy. Add the remaining 1 tablespoon spice rub, whipped egg white, and optional salt to the cooled nuts, then stir until everything is well coated.
Return the mixture to the roasting tray, spread out in a single layer, and place back in the oven for 10 minutes.
Spread out the mixture in a single layer, and leave to cool completely before storing.