Use a cutting board and chop the potato and carrot into small cubes, and dice the onion.
Mix the ground meat with a pinch of salt an pepper into a bowl. Moisten your hands with water or vinegar and form a ball of the ground meat mixture.
In place add a few spoon of flour and roll each meatball into the flour. Add it to a bowl and set the meatballs aside.
Heat up a pot with 1-2 tbsp oil over medium heat. Add the diced onion and saute until translucent, then add the potatoes and carrot and saute for another 3 minutes.
Then add 1.5l of water and bring it to boil, then add the meatballs and stir lightly.
Season with salt, pepper and the savory. Cook until the meatballs and potatoes are fully cooked for about 25 minutes.
In a bowl, beat the egg, with the yogurt and whisk them well.
Slowly add a little bit of the soup to the eggs mix well and return the egg mixture to the pot with the soup.
Reduce the heat to low and cook the soup for 5-10 minutes and stir continuously so the egg won't curdle.