Green Tomato Chow

Name: Green Tomato Chow
Ingredients: 2 lb. small green tomatoes, cored and thinly sliced; 1 medium yellow onion, thinly sliced; 1⁄4 cup fine sea salt; 1 tbsp. whole black peppercorns; 2 tsp. cardamom seeds; 2 tsp. coriander seeds; 1 tsp. whole allspice berries; 1 tsp. yellow mustard seeds; 5 whole cloves; 2 bay leaves; 2 dried chiles de arbol, stemmed; 1 stick cinnamon, broken in half; 1 2″-piece ginger, peeled and thinly sliced; Cheesecloth, for spices; 3 cups white wine vinegar; 2 cups sugar