Heat the oil in a large pot over medium heat. Add the onion, garlic, leek, and celery. Cook until soft, about 5 minutes. Add the potato, chicken broth, cauliflower florets, and sherry.
Wait for it to boil and then lower the heat a bit, stirring occasionally until the potatoes and cauliflower are tender.
Put everything in a blender and puree.
Return the soup to the pot and add the milk, cream, and blue cheese. Season with salt and pepper and stir well.
Serve with a bit of gorgonzola cheese in the center and chopped parsley.
Nutritional Information
* * Information per 100g serving, percentage of daily values based on a 2,000 calorie diet.
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