Clean and wash the vegetables, keep some of the celery green for garnishing and cut into pieces of about 10 cm. Peel garlic and press it through the garlic press or chop it finely.
Mix crème fraîche and soured milk. Season to taste with garlic, horseradish, tabasco and salt. Pour the dip into a small bowl, dust with cayenne pepper and arrange on a plate with the vegetables.
Garnish with celery green.