Ingredients

1 small white onion, finely diced 

12 ounces plum tomatoes, finely diced 

4 fresh serrano chiles, stems removed and finely chopped 

12 large sprigs fresh cilantro, finely chopped 

1 large clove garlic, minced 

1 1/2 teaspoons freshly squeezed lime juice 

3/4 teaspoon salt 

Preparation

Place the onion in a fine sieve, and rinse under cold running water; shake sieve to remove any excess water. Transfer onion to a medium bowl, and add the remaining ingredients. Stir to combine, and let stand a few minutes so flavors meld. Store salsa in an airtight container, refrigerated, up to 1 week.