Ingredients

• 1 large head cauliflower, stem discarded, florets chopped
• 1 medium potato, peeled and chopped
• 1/2 onion, chopped
• 1 tablespoon butter
• 1 tablespoon olive oil
• 4 cups light chicken stock
• 2 cups whole milk
• 1/2 cup heavy cream
• 6 large sorrel leaves, stems trimmed, then shredded
• 2 tablespoons caviar (optional)
• Sea salt and freshly ground black pepper

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Instructions

1. Place the cauliflower florets, potato, and onion in a saucepan with the butter and oil. Heat gently and, when the contents start to sizzle, cover with a lid and sweat everything over a low heat for about 10 minutes. The vegetables should not be at all colored.
2. Add the stock and bring to a boil, then pour in the milk and return gently to a boil. (This way, there will be no scum forming in the milk.) Season to taste, then simmer, uncovered, for 10-15 minutes when the vegetables should be soft.
3. Pour in half the cream, then puree in a food processor or blender, or blend in the pan with an immersion blender. Pass the puree through a sieve into a clean pan, rubbing with the back of a ladle.
4. Stir in the rest of the cream. Taste for seasoning and bring the soup to a boil. Ladle into soup plates, top with sorrel shreds, and add a spoonful of caviar to each. Serve.