Steps
- Cover ¼ finely chopped yellow onion with boiling water for 10 minutes. Rinse with cold water and drain well.
- Finely chop 2 cups of cilantro leaves, discarding thick stems. Seed and finely dice 1 tomato.
- Mix the onion, cilantro, and tomato with 1 tablespoon of red wine vinegar, 1 tablespoon of sunflower oil, and ½ teaspoon of red chili sauce. Season with salt and rest for 1 hour.