Mince the garlic, and slice the onion and mushrooms. Fry in a frying pan with some oil or butter until the mushroom has shrunk and the onion is caramelised.
3
Add soy sauce, lentils, pepper and creme fraiche. Let it simmer on medium heat for about 10 minutes. Feel free to season with extra soy sauce.
4
Pour out the water from the potatoes and add a tablespoon of butter, a little salt and a tablespoon of sour cream. Mash it all with a fork or potato masher until quite smooth.
