Budget big-batch gravy
Ingredients 2kg chicken wings 2 rashers bacon 1 head garlic, halved 2 brown onions, halved 3 carrots, roughly chopped 2 sticks celery, roughly chopped 2 bay leaves 1 tbsp olive oil 1 1/2 cups plain flour 5 litres boiling water 2 tbsp soy sauce 2 tbsp Worcestershire sauce 2 tbsp tomato sauce 2 tsp chicken ...