For the spaetzle, bring 2-3 litres of salted water (approx. 1 teaspoon salt per litre) to the boil. Peel and finely chop the onion. Dice the bacon. Peel, wash and chop the carrots. Pour spaetzle into boiling water and cook according to package instructions.
Fry the bacon in a large pan until crispy. Add onion and carrots and fry. Deglaze with 3 tbsp vinegar and 100 ml water and simmer for 5 minutes.
Add the lentils and warm up for 3-4 minutes. ##Wash, shake dry and chop the parsley. Drain spaetzle. Season lentil pot with salt, pepper, vinegar and 1-2 teaspoons sugar. Stir in parsley.
Arrange the lentil pot with spaetzle.