Chop the vegetables (onion, garlic, carrots, celery, leek) into small cubes.
Melt the butter in the saucepan (vegan alternative: oil), fry the onions until they are translucent. Add the rest of the vegetables and let them stew briefly. Add three cups of broth and one cup of beluga lentils, simmer for 20 minutes. Season with salt, pepper and, if you like, chilli.
Tip:
Also delicious with potatoes and sausages.
Bread rolls, bread and spaetzle are suitable as a side dish.