Corn Relish

INGREDIENTS

• 2 1/2 cups apple-cider, or distilled white vinegar
• 1 1/4 cups sugar
• 4 teaspoons coarse salt
• 1 1/2 teaspoons mustard seed
• 1 teaspoon fresh thyme, leaves
• 1/2 teaspoon celery seed
• 1/2 teaspoon crushed red-pepper flakes
• 2 to 3 bay leaves (optional)
• 8 to 10 black peppercorns (optional)
• 1 to 2 pieces whole allspice (optional)
• Kernels from 10 ears corn (about 8 cups)
• 2 small red bell peppers, stemmed, seeded, and cut into 1/4-inch dice
• 2 small white onions, thinly sliced