Selyodka pod Ukropnym Sousom

In a small saucepan, combine the red wine vinegar and sugar over medium heat, stirring constantly until the sugar fully dissolves. Continue to cook for 2-3 minutes until the mixture is slightly syrupy.

Remove the saucepan from heat and allow the vinegar-sugar reduction to cool to room temperature. This forms the acidic base of the dill sauce.

Slowly whisk in the olive oil in a thin, steady stream to emulsify the dressing until it is smooth and well combined. Season lightly with salt if desired.

Prepare the herring by rinsing the fillets under cold water and patting them thoroughly dry with paper towels. Slice the fillets into even bite-sized pieces.

Arrange the herring pieces in a single layer in a shallow serving dish or bowl. Pour the prepared dill sauce evenly over the herring fillets.

Cover the dish tightly with plastic wrap and refrigerate to allow the herring to marinate and absorb the flavors of the sauce. The longer it rests, the more pronounced the flavor will be.

Remove the dish from the refrigerator and let it stand at room temperature for 5 minutes before serving. Garnish generously with freshly chopped dill before presenting at the table.