1/2 cup white onion, finely diced
2 cups diced fresh tomatoes
1/4 cup fresh cilantro
1 Tbsp. minced jalapeño
Place 1 cup cold water and 2 ice cubes in a medium bowl. Add onion, stir briefly. Discard ice and drain well.
Transfer to another medium bowl. Add tomatoes, cilantro and jalapeño. Season with salt and serve.