Heinz's latest condiment might sound familiar to some Americans. 
Credit: Courtesy of Kraft Heinz

By now, you’ve seen the Heinz viral challenge to Americans: Would they try Mayochup—a ketchup and mayonnaise hybrid that the company has already introduced in some Middle Eastern countries. The answer was a resounding yes, as it sounds like a delicious companion to French fries, blending the typical stateside fry condiment with the preferred dipping sauce for pomme frites. With the Heinz campaign a success, Mayochup is indeed coming to America. Here’s everything you need to know about the condiment.

First of all, though it may look like Thousand Island dressing, Thousand Island dressing it is not. Thousand Island dressing is a mixture of ketchup and mayonnaise, but it also incorporates other flavors from relish, lemon juice, and onions. Mayochup is as basic as you can get: just ketchup and mayonnaise mixed together. You might be thinking, can’t you just buy the two condiments separately and do the mixing yourself? The answer is yes, and as it turns out, people have been doing just that since at least the 1920s.

Plenty of Americans are already quite familiar with the ketchup and mayonnaise combination. For Puerto Ricans, the combination of ketchup and mayo is called "mayoketchup,” and as the Washington Post reports, it’s sometimes seasoned with a touch of garlic. In Latino communities, the sauce is so popular that Goya sells its own version called “Mayo Ketchup.” In other Latin American countries, including Colombia and Venezuela, the condiment has yet another name: salsa rosada.

Utahns have also tried to take credit for inventing the condiment, which they call Fry Sauce (which also comes pre-bottled for your convenience). Apparently, a chef named Don Carlos Edwards introduced the mixture to his Utah restaurants in the 1940s. Another legend says that Luis Federico Leloir invented the sauce in the 1920s, at Mar del Plata Golf Club in Argentina, which lead to the nickname "salsa golf."

No matter what it’s called, or where it came from, people everywhere seem to love the combination. When the Heinz version hits shelves at American grocery stores, you’ll just have to decide for yourself whether it’s worth the hype. Or you could mix up your own version right now. Here's the foolproof trick to making mayonnaise at home and our recipe for sweet and spicy ketchup.