- 1 red onion, thinly sliced
- 3 roma (plum) tomatoes, diced
- 3 tablespoons cilantro
- 3 tablespoons white vinegar
- 1 tablespoon sugar
- 1 teaspoon pepper
- 1 pinch salt
- Combine the onion, tomatoes, and cilantro in a non-metal bowl. Whisk together the vinegar, sugar, pepper and salt; pour over the onion mixture, and toss to coat. Cover and refrigerate 2 to 4 hours. Drain right before serving.