Prepare a water bath and sterilize all jars and lids
Make brine by mixing vinegar, sugar, salt, and water. Simmer for 10 minutes
Wash and wipe peppers. Trim any excess stems.Pierce each pepper a couple of times with a knife
Pack peppers in clean, dry jars. In each jar put 2 cloves of garlic, 2 allspice berries, a bay leaf, ½ tsp peppercorns, and ½ tsp mustard seed
Pour the hot brine over the peppers. Wipe and seal the jars
Process in a boiling water bath for 10 minutes