You see, ketchup was once made not from tomatoes, but from mushrooms. Originally, ketchup in the United Kingdom was prepared with mushrooms as a primary ingredient, instead of tomato, the main ingredient in contemporary preparations of ketchup.Historical preparations involved packing whole mushrooms into containers with salt. This was not a sauce but a “Ketchup in Paste” made with kidney beans to replace soy beans and many spices. (In Asia, on the other hand, tomato ketchup had already been hugely popular for decades.) The popularization of tomato ketchup didn’t happen in America until 1834. Ketchup has got other names too – tomato sauce, red sauce, Tommy sauce. You may never think of Jane Austen in quite the same way once you know that she was particular to a certain kind of ketchup: walnut ketchup. Ketchup was originally made from all sorts of crazy things that look completely and utterly foreign to modern eyes. When ketchup was originally developed by the Chinese in 1690, it contained no tomatoes. After reading that tomatoes could work to cure certain maladies, a man named Dr. John Cook … Since ketchup could apparently be made with whatever, tomatoes finally got their shot at the sauce in the first half of the 19th century. Tomatoes made an occasional appearance -- in 1812 horticulturalist James Mease published a recipe that called for tomato pulp, spices, and brandy -- but ketchup … Mushroom ketchup is a style of ketchup (also spelled "catsup") that is prepared with mushrooms as its primary ingredient. But did you know that the first types of ketchup weren’t made from tomatoes. Although today's ketchup is tomato based, it did not appear until about a century after other types. What Is Ketchup Made Of, Originally? Bradley indicated, however, that it originated in “Bencoulin in the East Indies” which was a British settlement on Sumatra since 1684. Once upon a time, America's favorite condiment wasn't red and it wasn't made with tomatoes. It could be mixed with water to make a sauce as needed but it would not have held for very long, having no method of preservation. Lasting from mid-August until mid-October, ketchup could only be made fresh for two months out of the year. Find out everything you ever wanted to know about ketchup. Think of her taking a break from writing Pride and Prejudice for a bit of walnut ketchup smeared on a piece of bread. So then, what is ketchup made of? By 1801, a recipe for tomato ketchup was created by Sandy Addison and was later printed in an American cookbook, the Sugar House Book.  James Mease published another recipe in 1812. 1 9 Chemicals You Didn't Know Were in Your Food.