- Half a large onion
- Two cloves of garlic
- One tablespoon of vegetable oil
- One small red chilli
- Four or five large tomatoes
- Two sprigs of rosemary
(or one teaspoon of dried rosemary) - Two teaspoons of english mustard
- Four tablespoons of tomato ketchup
- Two tablespoons of golden syrup
- Two tablespoons of white wine vinegar
- One tablespoon of dark soy sauce
