Pickled Crawfish Tails

Ingredients

• 2 (12-ounce) packages frozen cleaned and peeled crawfish tails, defrosted
• 1 small onion, halved and thinly sliced
• 1/2 cup tarragon vinegar
• 1/4 cup olive oil
• 3 garlic cloves, thinly sliced
• 6 whole black peppercorns
• 2 whole allspice berries
• 1/2 teaspoon coriander seeds
• 1/2 teaspoon celery seeds
• 1/2 teaspoon fennel seeds
• 1/2 teaspoon mustard seeds
• 1/2 teaspoon dill seeds
• 1/4 teaspoon red pepper flakes
• 4 bay leaves
• 1 cinnamon stick
• 4 whole cloves
• 1 star anise
• 1 tablespoon sugar
• 1/2 teaspoon minced peeled fresh ginger