Step 1

Melt butter in a large saucepan over medium-low heat. Cook the onion for 3-4 minutes until soft but not coloured. Add cauliflower and cook, stirring, for 1 minute. Add stock and milk, then bring to the boil. Reduce the heat to low and cook for 5-6 minutes until cauliflower is tender. Cool slightly, then blend soup until smooth. Return to pan with cream and heat through. Season with sea salt and white pepper.

Step 2

Meanwhile, preheat the oven to 180°C. Process brioche and garlic in a food processor to form crumbs. Spread on a baking tray and toast for 5-6 minutes until golden, then toss with parsley. Serve soup sprinkled with the crumbs.