Peel and wash the potatoes and cook them in boiling salted water for about 20 minutes. Quarter peppers, clean and wash. Cut 1/4 of each pepper into thin strips. Beat the cutlets a little flatter, season with salt and pepper.
Spread with 2 tablespoons of aiwar. Spread strips of paprika on top. Roll up cutlets and fix with wooden skewers. Heat 1 teaspoon of oil in a pan. Fry the rolls in it all around for about 5 minutes.
Deglaze with stock, bring to the boil and cook for about 15 minutes. Cut the rest of the pepper quarters into pieces. Peel onions and cut into large cubes. Heat 1 teaspoon of oil in a saucepan. Fry the bell peppers and onions for about 4 minutes.
Add 2 tablespoons of aiwar and 75 ml water, bring to the boil, season with salt and pepper and simmer for 2-3 minutes. Drain potatoes, mash them, stir in milk and butter and season with salt and nutmeg.
Remove the rolls from the pan and keep warm. Mix cornflour with a little water and thicken the sauce. Arrange schnitzel rolls with paprika vegetables, sauce and mashed potatoes on plates.