Ingredients
- 4 pounds yellow summer squash or zucchini
- 8 ounces sweet onion (about 1 medium)
- 1⁄4 cup plus 1 Tbsp pure kosher salt
- 2 tablespoons cumin seeds
- 1 tablespoon yellow mustard seeds
- 1 tablespoon hot red pepper flakes
- 1 teaspoon ground cumin
- 6 cups cider vinegar (5% acidity)
- 2 tablespoons mild honey
- 7 cloves garlic
- 7 small fresh serrano chiles