Combine cucumbers, onions, and dill in a large mixing bowl and toss ingredients together to evenly combine.
5 cups thinly sliced cucumber, 1 cup thinly sliced red onion, 2 Tablespoons finely chopped fresh dill
In a separate small mixing bowl or measuring cup, vigorously whisk together vinegar, sugar, salt, and pepper to create the dressing.
¼ cup white wine vinegar, 1 ½ Tablespoons granulated sugar, ¾ teaspoon table salt, Freshly ground black pepper
Pour dressing evenly over the cucumber mixture and toss everything together until evenly coated.
Cover bowl tightly and chill in the refrigerator for at least 30 minutes before serving.
Stir before serving.
Notes
Cucumbers
This is usually 2 standard-sized cucumbers for me. I use the second-thinnest setting on my mandolin to slice the cucumbers. Alternatively, you can use a sharp knife. I like my slices to be slightly thinner than ⅛” (3mm).
Dill
You may substitute 1 heaping Tablespoon dried dill, but fresh is best.