RecipesCauliflower › Creamy Cauliflower and Potato Soup

Creamy Cauliflower and Potato Soup

Velvety smooth and deeply satisfying, this soup gets its body from cauliflower and potato with no cream required. A swirl of olive oil and fresh chives on top turns a simple bowl into something worth sitting down for. Ready in 35 minutes.

35 min (10 min prep, 25 min cook)Serves 4easySoupsvegetarian · gluten-free · dairy-free

Ingredients

  • 1 large head cauliflower, cut into florets
  • 2 medium russet potato, peeled and diced
  • 1 large yellow onion, diced
  • 4 cloves garlic, minced
  • 5 cups vegetable broth
  • 2 tbsp olive oil
  • 3 sprigs fresh thyme
  • 1 tsp salt
  • ¼ tsp white pepper
  • 2 tbsp fresh chives, chopped, for serving (optional)

Contains: milk.

Method

  1. Heat olive oil in a large pot over medium heat. Cook onion for 5 minutes until softened. Add garlic and thyme and cook for 1 minute.About 6 min
  2. Add cauliflower, potato, and vegetable broth. Bring to a boil, then reduce heat and simmer for 20 minutes until both vegetables are very tender.About 23 min
  3. Remove thyme sprigs. Use an immersion blender to puree the soup completely smooth. Alternatively, carefully blend in batches in a blender.About 3 min
  4. Season with salt and white pepper. Ladle into bowls and finish with a drizzle of olive oil and chopped chives.About 2 min

Tips

  • The potato is the secret ingredient — it gives the soup its silky body without any cream.
  • For a toasted flavour, roast the cauliflower at 425°F for 20 minutes before adding to the pot.
  • White pepper rather than black keeps the colour clean and adds a gentle heat.

Ring the changes

  • Stir in 2 tbsp white miso at the end for an umami-rich, deeply savoury version.
  • Add a handful of grated cheddar to the finished soup for a cheesy potato-cauliflower variation.

Keeping it

Refrigerate for up to 5 days or freeze for up to 3 months. Reheat over low heat with a splash of broth.

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Tony C Smith
Tony C Smith

Allotment keeper in the North East of England, the voice behind the Tony C Smith YouTube channel, and the gardener who built GrowMore CookMore. Club numbers on this page update as members log their plots. Last updated 4 April 2026.