This is a healthy breakfast topped with some thick natural yoghurt and fresh sliced fruit, and is always good splashed with cold milk. It is great to have at home and even serves as an emergency snack. You can use any nuts in place of the walnuts here, and add other ingredients or vary these to your liking. You can make more than the amounts given here and keep it in an airtight container or glass jar — but remember before baking it that it needs to be spread out in a flat, fairly thin layer on your trays.