<Li> Frederick Gibson Garton </Li> <Tr> <Td_colspan="2"> Media: HP Sauce </Td> </Tr> <P> HP Sauce is a brown sauce originally produced by HP Foods in the United Kingdom, now produced by the H.J. Heinz Company in the Netherlands . It was named after London's Houses of Parliament . Since its first appearance on British dinner tables, HP Sauce has become an icon of British culture . It was the best - selling brand of brown sauce in the UK in 2005, with 73.8% of the retail market . </P> <P> HP Sauce has a tomato base, blended with malt vinegar and spirit vinegar, Sugars (molasses, glucose - fructose syrup, sugar), dates, cornflour, rye flour, salt, spices and tamarind . It is used as a condiment with hot and cold savoury food, and as an ingredient in soups and stews . It is also popular in Canada, the Republic of Ireland, Australia, and New Zealand . </P>

What does hp stand for in the sauce