4 tbsp tomato ketchup
3 tbsp brown sauce
2 tbsp golden syrup
1 tbsp Worcestershire sauce
1 tbsp rice wine vinegar
5 tbsp water
1 tsp cornstarch
Combine everything in a sauce pan except the water and cornstarch. Cook on low until sugar dissolves. Make a cornstarch slurry and whisk in the sauce to thicken.