Knead dumpling dough with egg yolks and 3 tbsp. flour. If the mixture is too moist, knead in more flour by the spoonful. Form rolls from the mixture on a floured work surface as thick as a thumb (men's thumbs!). Cut rolls with a knife trapezoidally into 5-6 cm long pieces. Mix the hazelnuts with salt and spread on a flat plate. Whisk eggs and milk in a deep plate
First pull the croquettes through the egg mass, then turn them in the hazelnuts. Press the hazelnuts a little bit and form croquettes. Heat plenty of oil (approx. 1 fingerbreadth) in a large pan. Fry the croquettes in it in 2 portions for 6-8 minutes, turning constantly. Arrange the croquettes and garnish with parsley