HP Sauce

The common title of what is possibly 'Houses of Parliament Sauce' - although there is some controversy about this, as the inventor's name was Harry Palmer. However the Parliament buildings have been on their bottles for a considerable time. It's a thick sauce in a similar style to Worcester Sauce; both being based on ingredients the British found in India. It was first produced in 1899.

The listed ingredients include Vinegar, Tomatoes, Molasses, Dates, Sugar, Tamarind and Spices.