Break the bay leaves and the cinnamon stick into small pieces, then combine them in a bowl with the mustard seeds, coriander seeds, black peppercorns, allspice berries, dill seed, crushed red pepper flakes, whole cloves, and dried ginger pieces; toss until evenly mixed, about 30 seconds.
Transfer the pickling spice to an airtight jar, label, and store in a cool, dark place for up to 1 year; for best flavor let the blend rest 24 hours before using.
To use, add 1β2 tablespoons pickling spice per quart of brine, tying it in cheesecloth or a sachet so itβs easy to remove, and discard after pickling or brining.