Peel the potatoes and cut into pieces.

Boil the potatoes in salted water for 20 minutes.

Peel, core and quarter 2 of the apples, then cut into small pieces.

Place the apple in a saucepan, cover with the apple juice. Add the brown sugar and bring to a boil. Turn the heat down to low and let simmer for 20 minutes or until the apple is mushy. Cover to keep warm.

Slice the wurst into coins. Heat the canola oil in a skillet. Place a layer of paper towels by the stove. Fry the wurst in the oil for 5 minutes until it starts to brown on both sides. Transfer to the paper towels.

Peel the onions and slice into rings. Place them in the wurst fat and saute until they start to brown. Season with salt and pepper.

Peel and core the remaining apple. Cut into slices. Heat 2 tablespoons of the butter in a separate skillet and fry the apple pieces until brown on both sides.

Drain the potatoes and mash them with the remaining 2 tablespoons of butter and the cream. Season with salt, freshly ground pepper, and nutmeg.

Mash the cooked apple.

Arrange the mashed potatoes and mashed apples on a serving plate. Add the fried apple slices, onion rings, and fried wurst. Serve warm.