Clean and wash the beans. Peel the potatoes and cut them in half or quarters as desired. Pour into salted water, bring to the boil0 and cover and cook over medium heat for about 20 minutes. In the meantime, put the beans in boiling salted water, cover and cook over medium heat for about 15 minutes.
Heat the oil in a small pan and fry the pork loin for about 2 minutes on each side. Then remove from the pan and keep warm. Wash the thyme, dab dry and pluck the leaves from the stalks.
Add stock and cream, bring to the boil, stir in sauce thickener, bring to the boil again and season with salt and pepper. Pour the beans into a sieve. Drain the potatoes. Arrange beans, sauce, potatoes and meat on a plate.
Sprinkle with thyme, sprinkle with pink berries as desired and serve garnished with parsley.