Cook the green beans in boiling salted water for 10 minutes. Rinse with cold water and drain well.
Peel the potatoes.
Heat 1½ tablespoons of oil in a large pan over medium-high heat. Fry the potatoes for 6-8 minutes, stirring occasionally, until golden brown on all sides.
Pour the hot broth over the potatoes and cover the pan. Reduce heat to medium and simmer for 12-15 minutes until the potatoes are tender.
While the potatoes cook, cut the Kasseler into narrow strips.
Heat ½ tablespoon of oil in another pan over medium heat. Fry the pork strips for 3 minutes until heated through.
Finely chop the parsley.
When the potatoes are tender, add the cremefine to the pan and bring to a gentle simmer over medium heat for 1 minute.
Sprinkle 1 tablespoon of sauce thickener into the sauce and stir constantly for 1 minute until it thickens slightly.
Add the cooked beans and pork to the sauce and cook for 2 minutes, stirring occasionally, until heated through.
Remove from heat, stir in the parsley, and season with salt and pepper to taste.