Pickled Herring and Cucumber Salad

4 seedless English cucumbers, thinly sliced

4 vine-ripened tomatoes, diced

1 onion, thinly sliced

1 cup apple cider vinegar

½ cup granulated sugar

2 (12 ounce) jars herring pickled in wine sauce (such as VitaR)), liquid drained and reserved

Combine cucumbers, tomatoes, and onion in a large glass mixing bowl.

Stir vinegar and sugar together in a small saucepan over medium-low and bring to a boil; cook and stir until the sugar dissolves. Pour over the vegetable mixture. Marinate mixture in the refrigerator for 30 minutes.

Stir the reserved liquid from the herring into the vegetable mixture. Fold herring into the vegetable mixture. Refrigerate 1 hour more before serving.