Begin by melting the butter in a deep pan. Add the finely chopped onion and sauté until it turns translucent, releasing its sweet aroma.
Add the cauliflower florets, potato pieces, milk, nutmeg, and vegetable stock to the pan. Season this mixture with freshly ground black pepper and a pinch of sea salt.
Allow the soup to simmer gently for about 25 minutes. This ensures that the vegetables soften.
Once cooked, we use a Bosch Stick Blender, blend the soup to a velvety consistency.
Ladle the soup into bowls, garnishing with a generous sprinkle of mature Cheddar cheese and a dash of black pepper. Serve alongside slices of crusty sourdough bread for that perfect bite.