- 1 teaspoon sea salt
- 2 red onions, sliced very thinly into half moons
- 2 large English cucumbers, halved and sliced very thinly
- 1 large tomato, halved and thinly sliced
- 2 tablespoons rice vinegar
- 2 tablespoons lime juice
- 1 tablespoon white wine vinegar
- 1 jalapeno pepper, sliced into very thin matchsticks, or more to taste (optional)
- 1 tablespoon chopped fresh cilantro
- 1 1/2 teaspoons olive oil
- cracked black pepper to taste
- Fill a bowl with water; stir in salt until dissolved. Add red onions; let soak for 10 minutes. Drain and pat dry.
- Mix onions, cucumbers, tomato, rice vinegar, lime juice, white wine vinegar, jalapeno pepper, cilantro, olive, and black pepper together in a large bowl. Cover with plastic wrap and let marinate at room temperature before serving, about 30 minutes.