Whisk eggs and cream well. Season with salt, pepper and nutmeg and place in a well-greased ovenproof dish with a closable lid or a preserving jar (capacity approx. 300 ml) with a lid.
Leave to stand in a closed pot in a hot water bath for about 40 minutes. Peel and wash the carrots and cut them into fine cubes. Clean, wash and cut leek into fine rings. Turn out the eggs from the mould and cut out small stars.
Bring vegetable stock to the boil, add carrots and cook for 5 minutes. Add leek and peas and continue cooking for 2-3 minutes. Add the eggs and let it simmer for a short time. Season soup with salt and pepper and serve.