Prepare the cucumbers: Slice the English cucumbers very thinly. If using standard cucumbers, peel and seed them first. Place the slices in a colander, lightly salt them, and let them sit for 10 minutes to draw out excess moisture. Pat dry with paper towels.

Prepare the dressing: In a medium bowl, whisk together the Greek yogurt (or sour cream), apple cider vinegar, 1 tablespoon of Everything Bagel Seasoning, Dijon mustard, minced garlic, salt, and pepper until smooth and well combined.

Combine the vegetables: In a large mixing bowl, gently combine the dried cucumber slices and the thinly sliced red onion.

Dress the salad: Pour the prepared dressing over the cucumber and onion mixture. Toss gently until everything is evenly coated. Be careful not to over-mix, which can bruise the cucumbers.

Fold in herbs and chill: Gently fold in the fresh chopped dill. Taste and adjust seasoning if necessary (add more salt, pepper, or vinegar for tang).

Serve: Transfer the salad to a serving dish. Sprinkle the top generously with additional Everything Bagel Seasoning before serving immediately or chilling for up to 30 minutes to allow flavors to meld.