Clean and wash the leek. Clean and peel the carrot. Cut both into slices. Steam in 200 ml boiling salted water for about 8 minutes. Add cream and bring to the boil. Season with clear broth.
Add the sauce thickener while stirring and bring to the boil again. Wash parsley, dab dry, chop and stir in. Peel onions and cut into rings. Wash the meat and dab dry.
Heat the oil. Fry the meat for about 4 minutes on each side. Season with salt and pepper. Add the onions after about 4 minutes and fry them. Arrange meat, onions and creamed vegetables. Garnish with parsley.