Peel and chop the onion. Peel and wash carrots and celery. Cut 2 carrots and celery into small pieces. Cook the remaining carrot in boiling water for about 15 minutes. Then first cut into slices, then cut out small stars.
Melt 20 g butter. Fry carrot scraps, pieces of carrot and celery and onion in it. Add 1 litre of water. Season with salt, pepper, curry, bay leaf and stock, let it boil for about 20 minutes. Remove the bay leaf and puree the soup.
Refine with 100 g whipped cream, season again. Dice ham finely and fry briefly in 10 g butter. Lightly whip the remaining cream. Arrange soup with a blob of whipped cream and diced ham on plates.
Garnish with carrot stars.