Macadamia Nuts were well-known to the indigenous inhabitants of Australia, and were first discovered by early white settlers in 1828. This now immensely popular Bush Nut is found in many Australian recipes. These Chocolate Macadamia Nut Brownies can be eaten straight away or made up to a week before required. Keep covered in the refrigerator or perhaps, if you want them to still be where you've put them in a week's time, hidden. Adapted from a recipe on the "Australian Women's Weekly" website.