3: Put the cauliflower and potatoes in a large saucpan. Pour in 1 litre whole milk, then add salt, pepper and grated nutmeg.
4: Put on mdeium heat and bring to the boil. Cook until the potatoes and cauliflower are just tender.
5: Drain the vegetables (the milk can be saved for another use) and blend. For a richer version, you can add add 50 g butter, but this is not essential.