2 medium-to-large cucumbers, peeled, seeded, halved lengthwise, and cut into 1/3-inch slices
3 medium tomatoes, seeded and cut into 1-inch dice, or about 2 cups cherry tomatoes, halved
1/2 small red onion, finely chopped
8-10 large basil leaves, cut in thin ribbons or "chiffonade"
2 Tbsp chopped fresh flat-leaf Italian parsley
1 tsp snipped fresh chives
2 Tbsp apple cider vinegar
1 Tbsp olive oil
freshly ground black pepper
- Combine all ingredients in a medium bowl, stirring gently to combine.
- Refrigerate for 30 minutes to let flavors combine.