Ingredients
1 1/2 teaspoons black peppercorns
1 1/2 teaspoons cumin seed
2 fresh jalapeños, sliced
Water for boiling
1 very large red onion, thinly sliced
3/4 cup apple cider vinegar
1/4 cup water
1/2 cup white vinegar
1/2 cup plus 1 tablespoon sugar
1 tablespoon kosher salt
Directions
Evenly divide peppercorns, cumin seed and jalapeño slices into 5 (4-ounce) Mason jars. Set aside.
Bring a pot of water to a boil. Add onions and cook for 10 seconds. Drain immediately, allowing onions to drain for another 5 minutes.
Refill pot with apple cider vinegar, 1/4 cup water, white vinegar, sugar and salt over medium-high heat. While mixture comes to a boil, evenly pack onions into jars.
When vinegar mixture reaches a boil, evenly pour into jars (use funnel or ladle), allowing onions to rest for 40 minutes. Cover and refrigerate onions until serving.