Ingredients

2 cups distilled white vinegar 

1 tablespoon coarse salt 

1 tablespoon sugar 

1 teaspoon cumin seeds,  lightly toasted 

8 garlic cloves 

20 fresh jalapenos 

2 small red onions,  cut into 1/4-inch-thick rings 

Preparation

Bring vinegar, 1 cup water, salt, sugar, cumin, and garlic to a boil in a medium saucepan. Add jalapenos and onions; boil 5 minutes. Let cool completely, about 45 minutes. Refrigerate in an airtight container at least 1 week or up to 1 month.