Cook the lentils in plenty of salted water for a maximum of 10 minutes until they are firm to the bite and then drain.
Peel the onion and chop finely. Peel and finely dice the garlic. Peel, core and finely dice the apples. Sweat everything together in olive oil for about 5 minutes. Add the lentils and season with cumin, salt and pepper. Add the vegetable stock and then remove the pan from the heat, let everything stand for a good 10 minutes.
Wash and clean the lettuce and cut into bite-sized pieces.
Add the crème fraîche and balsamic vinegar to the lentils and mix carefully.
Now mix the lentil salad with the lettuce, finely chop the chives and fold into the salad.