To truss a chicken, you’ll need about 40cm (16 inches) of kitchen string. Place the bird on a chopping board, breast side up, with the legs facing you. Loop the centre of the string around the legs and then pull them together, then take the string down and under the thighs, overlap it under the bird and then bring it up, catching the wings, to meet over the breast. Secure the string and cut off and excess. You are now ready to roast.
To make the dressing, combine all the ingredients in a bowl and season with salt and pepper. It should be sharp and hot, with a nutty balance from the olive oil.
For the salad, put all the ingredients, except the nuts, in a bowl, add the dressing and mix well. Divide among four large plates, then sprinkle with the macadamia nuts and a good grind of pepper and drizzle over any remaining dressing from the mixing bowl.