Drizzle 1 tablespoon olive oil in a Dutch oven or baking dish large enough to hold the cauliflower; set aside.
Peel off the outer leaves of the cauliflower and trim the core just enough for the cauliflower to sit flat.
Place the remaining olive oil in a small bowl and use a microplane grater to grate the garlic cloves into it.
Add the herbs, salt, and pepper and whisk well.
Brush the mixture over the cauliflower, then press on the cheese.
Cover the Dutch oven or baking dish and roast for 40 minutes.
Carefully uncover and roast for another 15 minutes to lightly brown the crust.
While the cauliflower is roasting, make the pea pesto: Place the basil, peas, garlic, cheese, and walnuts in a food processor and pulse until very finely minced.
With the machine running, add the olive oil and process until smooth.
Add the water and pulse a few times. Season to taste with salt and pepper if needed.
To serve, cut the cauliflower into wedges, plate, and drizzle with the pea pesto and a few drops of olive oil.
Homemade Reduced-Salt Chicken Stock Makes approximately 2.5–3 litres Ingredients * 1.5–2 kg chicken bones/carcasses * chicken frames are perfect and inexpensive * wings, necks and backs are also excellent * 2 large carrots, roughly chopped * 2 celery stalks, roughly chopped * 2 brown onions, quartered * 4 garlic cloves, lightly crushed * 2 bay leaves * 6–8 whole black peppercorns * Small handful fresh parsley, including stalks * 2–3 sprigs fresh thyme, optional * Approximately 3.5–4 L cold water, or enough to just cover everything * No added salt I actually recommend making it without salt altogether. Then when you use 1 cup in a recipe, you control the salt in that particular dish. It essentially becomes your own no-added-salt chicken stock. Method 1. Optional, but excellent for flavour: place the chicken bones on a roasting tray and roast at 200°C fan-forced for 30–40 minutes, until lightly golden. You don’t need them deeply browned. 2. Transfer the bones to a large stockpot. Add the carrot, celery, onion, garlic, bay leaves, peppercorns, parsley and thyme. 3. Pour over enough cold water to just cover everything. You don’t want excessive water because you’re aiming for a flavourful stock rather than a watery broth. 4. Slowly bring it just to a simmer. 5. Once simmering, turn the heat right down. You want the occasional gentle bubble — not a rolling boil. 6. Simmer uncovered for around 3–4 hours. Occasionally skim away any foam/fat that rises to the surface. Add a little hot water if necessary to keep the bones mostly submerged. 7. Strain everything through a fine sieve. Don’t press or mash the vegetables through; just allow the liquid to drain. 8. Return the strained stock to the clean saucepan and simmer uncovered for another 20–40 minutes, if needed, until you’ve got roughly 2.5–3 litres and the flavour is pleasantly concentrated. 9. Cool promptly, then refrigerate. Once completely cold, you’ll probably see a layer of chicken fat set on top. Lift this off for an especially low-fat stock.