Prep time: 10 minutes. Cook time: 0 minutes. Chill time: 20 to 30 minutes. Total time: approximately 30 to 40 minutes. Servings: 4 to 6; nutrition estimates assume 6 servings. Use 2 English cucumbers or 4 Persian cucumbers, 1/2 small red onion, 2 tablespoons chopped fresh dill, and optional 1 tablespoon chopped parsley. For the dressing, whisk 1/2 cup sour cream or plain Greek yogurt, 1/4 cup mayonnaise, 1 tablespoon fresh lemon juice or apple cider vinegar, 1 teaspoon Dijon mustard, 1 teaspoon honey, 1/2 teaspoon garlic powder, 1/4 teaspoon ground black pepper, and approximately 1/4 teaspoon salt or to taste. Combine sliced cucumbers, onion, dill, and optional parsley in a large bowl. Add dressing and gently toss until evenly coated. Cover and refrigerate for 20 to 30 minutes. Stir gently before serving and adjust seasoning if necessary. For very watery cucumbers, optionally sprinkle with a little salt, rest in a colander for 10 minutes, drain, and pat dry. Reduce dressing salt accordingly if using this optional technique. English and Persian cucumbers have tender skins and small seeds, making them convenient for this salad. Use thick plain Greek yogurt for a tangier dressing, or apple cider vinegar instead of lemon juice for a slightly sharper flavor. For the best make-ahead texture, store vegetables and dressing separately and combine shortly before serving. Refrigerate leftovers promptly in an airtight container at 40°F (4°C) or colder and enjoy within approximately 2 days for best quality. Some dressing thinning is normal as cucumbers release moisture during storage. Avoid freezing. Nutrition estimates are approximate per serving and depend on cucumber size, sour cream or yogurt brand, mayonnaise, optional herbs, and portion size.