Name: Heirloom tomato chow chow
Prep time: 10 min
Cook time: 4 min
Cuisine: American
Ingredients: 450ml apple cider vinegar; 225g caster sugar; 1 tbsp dry mustard; 1 tbsp turmeric; 1 tbsp mustard seeds; 1 tbsp celery seed; 1 tsp cayenne pepper; 1 (2.5-cm) piece ginger, peeled, grated or chopped; .9kg firm, green heirloom tomatoes, cut into quarters; 2 medium onions, diced