Directions:
Begin by rinsing the pickled herring fillets to remove excess salt. Cut them into bite-sized pieces and set aside.
In a bowl, mix together the Dijon mustard, white vinegar, sugar, mayonnaise, and sour cream. Stir well until the sauce becomes smooth and creamy.
Add the finely chopped onion and grated carrot to the sauce, mixing gently to combine. Season with salt and pepper to taste.
Carefully fold the herring pieces into the sauce mixture, ensuring they are evenly coated.
Cover the bowl and refrigerate the dish for at least 2 hours, allowing the flavors to meld together.
Before serving, garnish with freshly chopped parsley for a touch of color and freshness.
Serving and Storage Tips:
