Peel, wash and dice the potatoes and carrots. Cook in boiling salted water for about 20 minutes. Melt the fat in a pot. Sweat flour in it, deglaze with 1/4 liter milk.
Stir in 1 teaspoon of broth, bring to the boil and simmer for a while. Wash parsley, shake dry and chop finely. Put 1 tablespoon of parsley aside, stir the rest into the sauce. Season the sauce with salt and pepper.
Clean, wash and halve the chicory. Heat the oil in a pan. Brown the chicory all around, add 100 ml water, stir in 1/2 teaspoon of stock, bring to the boil and cook for 3-4 minutes. Drain potatoes and carrots, collect vegetable water.
Coarsely mash the potatoes and carrots. Add 1/8 litre milk and 100 ml vegetable water and mix. Season puree with salt, pepper and nutmeg. Arrange chicory, some puree and sauce on plates.
Sprinkle the rest of the parsley over it. Add the rest of the purée and sauce.