Love Food Hate Waste

Ingredients

• 3 to 4 medium red onions, peeled and thingly sliced (can use brown onions too)
• 1 cup white vinegar (can also use cider vinegar)
• 1 cup water
• 2 Tbsp white sugar
• 1/2 tsp mustard seeds
• 1/2 tsp black peppercorns
• 3 bay leaves
• 1/2 tsp chilli flakes, optional
• 1 clean jar or air tight container