Heat the oil in a large pan. Cut the smoked pork into 1 cm cubes and fry all over in the hot oil. Add the potato noodles and fry until golden brown.
Deglaze with 350 ml of water, stir in the broth, bring to the boil and reduce a little. Season everything with salt and pepper.
In the meantime, mix the sour cream with the mustard. Pour the mixture into the pan and mix everything together. If the whole thing is still too runny, thicken it with a little sauce thickener. Serve immediately.