01 - In a large mixing bowl, combine the thinly sliced cucumbers, red onion, and chopped fresh dill.
02 - In a small bowl, whisk together the white wine vinegar, olive oil, sugar, salt, and black pepper until the sugar has fully dissolved and the dressing is emulsified.
03 - Pour the dressing over the cucumber mixture and toss gently until all the vegetables are evenly coated.
04 - Refrigerate for at least 10 minutes before serving to allow the flavors to meld. Serve chilled as a refreshing side dish.