Peel the onion and garlic, chop finely and gently sauté in the butter, add the peeled and chopped parsnip.
Deglaze with the broth, season with pepper and salt and let simmer for 15 minutes until all the vegetables are soft.
Mix in the sour cream, strain and it's ready.
Serve in bowls finished with a teaspoon of dukkah and a few drops of olive oil.
If you want to serve it cold, take the cooled soup out of the fridge and blend it again with an immersion blender to make it nice and creamy, serve in glasses and finish with dukkah and a few drops of olive oil.
For the dukkah: crush cumin, fennel, and coriander seeds separately in the mortar, some texture should remain, you can also dry roast the spices in a frying pan for extra flavor.
Then crush the black peppercorns in the mortar and afterwards the hazelnuts.
Put everything in a bowl, add sesame seeds and salt and mix everything together.
Store in a closed jar.