although today's ketchup is tomato based, it did not appear until about a century after other types. by 1801, a recipe for tomato ketchup was created by sandy addison. it was later printed in an american cookbook, the "sugar house book". james mease published another recipe in 1812. in 1824, a ketchup recipe using tomatoes appeared in "the virginia housewife". this was an important 19th-century cookbook written by mary randolph, thomas jefferson's cousin.