Peel and dice parsnips, apple, potatoes and onion and sauté in a saucepan with a little oil. Then deglaze with broth and simmer for about 15-20 minutes until everything is soft. Puree everything with a hand blender and season with cream, salt, pepper and nutmeg.
While the soup is boiling, clean, wash and pluck the wild garlic. Finely puree with the oil in a tall container.
Remove the shell and intestines from the shrimp, marinate with the garlic oil and cook on all sides in a pan. Season with salt and pepper.
Serve the soup with prawns and a few drops of wild garlic oil. Fresh baguette goes well with it.