Wash the potatoes and possibly halve them. Bring to the boil with approx. 1/8 l water and stock, cover and cook for approx. 10 minutes
Meanwhile, wash the carrot, cauliflower and spring onion. Finely dice the carrot, divide the cauliflower into florets and cut the spring onion into rings. Add everything with milk to the potatoes. Bring to the boil, cover and simmer for another 10 minutes.
Boil the egg until soft. Thicken the sauce, season with salt and pepper. Wash and chop the parsley. Rinse, peel and halve the egg. Arrange cauliflower with egg and parsley