Begin by cleaning the beetroot to remove any grit and soil. Cut the stems and roots from the beetroot leaving approximately 2.5cm in place; if either of them are trimmed too much, the colour will bleed out while cooking. Place in a pan of water with a little salt and bring to the boil, reduce the heat and simmer for 30-40 minutes or until the beetroot is tender or insert a sharp knife into the flesh – it should slide in easily. When cool enough to handle, remove the skin by rubbing it gently with your fingers. slice finely with a mandolin or a sharp knife.
Place in a dish and add the vinegar and 4 tablespoons of the extra virgin rapeseed oil with some salt and pepper.
Next make the granola. Pre-heat the oven to 170Cfan. Combine the oats, nuts, fennel seeds, sesame seeds and chia seeds in a bowl. Add the cayenne pepper, oil, egg white and honey. Season generously with salt and pepper. Place on a baking tray, stirring occasionally and bake for 15-20 minutes or until golden. It will become crunchy when it cools.
To assemble: Slice the halloumi, assume 3 slices per person. Heat a dry frying pan over a medium-high heat, add the cheese slices. Allow to cook for 2–3 minutes, or until the halloumi is golden-brown. Flip and repeat on the other side.
Season with black pepper and drizzle with the lemon juice and a little oil.
Arrange the beetroot slices on 4 dinner plates. Dress the rocket with he remaining oil and place in the centre of the plate on top of the beetroot. Scatter the blackberries on top of the beetroot and finely the halloumi on the rocket. Sprinkle the granola on the salads and serve.