Colonialist Sauce 20 June 2014, cervera de los Montes A4 (29,7 x 21,0 cm) Acrylic color, watercoloro, pencil, felt-tip pen and sticker on paper i The image and the design are from HP sauce is a sauce brand of the Heinz Company. The original recipe for HP Sauce was invented and developed by Frederick Gibson Garton, a grocer from Nottingham. He registered the brand in 1895. Garton called the sauce HP because he had heard that a restaurant in the Houses of Parliament had begun serving it. Tags: HP, sauce, England, Britain, London, colonialism 131 / 779