Cauliflower steaks with agrodolce, puree, greens and toasted hazelnuts | River Cottage Reunited

Ingredients

• 1 large onion or 3-4 shallots
• 2 tbsp rapeseed oil
• 50g raisins
• 50g capers
• 2 tbsp apple cider vinegar
• 2 medium-sized cauliflower
• Cauliflower trimmings (left from cutting the cauliflower ‘steaks’)
• 2 garlic cloves, bashed and peeled
• 1-2 tbsp rapeseed oil
• Cauliflower greens from 1-2 heads of cauliflower
• 1 garlic clove, chopped
• 1 tbsp rapeseed oil
• 50g toasted hazelnuts
• A handful of freshly chopped chives
• A trickle of rapeseed oil
• Sea salt and freshly ground black pepper