Peel, wash and drain the carrots and potatoes. Cut carrots into thick slices, potatoes into pieces. Cover carrots and potatoes and cook in boiling salted water for 15-20 minutes
Onions peel, in columns cut. Wash the corn, dab dry and cut into 1-1.5 cm long pieces. Cut sausage diagonally into pieces, alternately put on skewers with corn and onions. Heat oil in a pan. Fry the skewers for 5-6 minutes, turning them in portions, and season with salt and pepper. Keep ready skewers warm
Wash the parsley, shake dry. Pluck the leaves from the stalks and cut them into strips, possibly except for a little bit for garnishing. Melt 30 g butter, stir in parsley. Drain carrots and potatoes, except for approx. 250 ml of liquid. Add 30 g butter and mash everything roughly. Season with salt, pepper and sugar
Arrange puree and skewers, sprinkle with parsley butter and garnish with parsley if desired