Peel and finely dice the onions, garlic and celery. Melt 1 tablespoon of butter, fry the prepared ingredients in it until translucent. Deglaze with broth and simmer covered for about 15 minutes. In the meantime cut the beetroot into cubes. Pour into the stock, add cream and puree with the chopping stick.
Wash the chilli pepper, cut in half lengthwise and remove the seeds. Chop the pod finely. Season soup with salt, pepper, chili and vinegar. Dice toast. Wash apple, quarter it, cut out cores. Dice flesh as well. Melt 2 tablespoons of butter. Fry the toast and apple cubes for 2-3 minutes. Cut off the cress briefly.
Wash apple, quarter it, cut out cores. Dice flesh as well. Melt 2 tablespoons of butter. Fry the toast and apple cubes for 2-3 minutes. Cut off the cress briefly. Season the soup again and serve it in portions, sprinkled with the toast mixture and cress.