To the soup pot, add 2 chicken breast and 2 chicken thighs, 2 bay leaves, the peppercorns and a pinch of salt. Pour in cold water and set to boil over medium heat. Once it boils, lower the heat to simmer and cook for 30 minutes with a lid slightly ajar. Make sure to skim the foam off the top to keep the broth clear.
At the end of the cooking time, remove the chicken and set aside to cool. Shred with two forks into bite-sized pieces. Strain the broth through a sieve to remove the impurities, the bay leaves and the peppercorns. Set the clarified broth aside till needed.
In the same pot melt the butter and saute the onions, celery and carrots for 5 minutes over medium heat, then add 1 pressed garlic clove and cook briefly for 30 seconds. Pour the broth over the vegetables, and add the chicken back to the pot, bring everything to a boil. Then add the noodles and cook for 8-10 minutes until al dente. Sprinkle with fresh dill and parsley before serving.