Bernardin Home Canning: Because You Can: Green Tomato Pickles

Ingredients

• 7 lb (3.2 kg) green plum tomatoes, about 35 medium
• 2 medium cooking onions
• 1/4 cup (50 ml) pickling salt
• 2 medium sweet red peppers
• 1 lemon
• 1 tbsp (15 ml) celery seed
• 3 tbsp (45 ml) mustard seed
• 1 tbsp (15 ml) Each: green peppercorns, dill seed
• 4 cups (1000 ml) vinegar
• 2 cups (500 ml) water
• 1 cup (250 ml) granulated sugar