Cucumber preparation: Give them a good wash. Slice cucumbers for salad thinly (about 1/8-inch thick) using a sharp knife or mandoline for uniform slices. For a fancier presentation, score the cucumber skin with a fork before slicing it to create decorative edges. Put the slices in a big bowl for mixing.
Make the dressing: In a small bowl, combine Greek yogurt, mayonnaise (if using), minced garlic, white vinegar, lemon juice, salt, pepper, and sugar. Whisk until smooth. What dressing goes on cucumber salad? This creamy yogurt-based dressing is classic, but you can swap in sour cream for a richer taste or use only vinegar and oil for a lighter option.
Add herbs: Stir in the chopped dill and parsley. What herbs go in cucumber salad? Dill is a must for its fresh, slightly tangy flavor, but parsley, chives, or even mint can elevate the dish. Adapt herbs to your tastes.
Combine ingredients: Pour the dressing over the sliced cucumbers and red onion (if using). Gently toss to coat evenly, ensuring every slice is covered in the creamy goodness.
Chill and serve: Cover the bowl with plastic wrap and refrigerate for at least 10 minutes to let the flavors meld. Serve cold for optimal cooling. For best results, garnish with extra dill before serving.