Why is there mustard on my hamburger?
I know what you are saying “hamburgers are not New York food, so what on earth could this post be about.”. Well, for as long as I remember I have wanted to know why everywhere in America (perhaps the world) except the New York City metropolitan area puts mustard (and ketchup) on hamburgers, but in New York it is just straight ketchup.
As a child I just assumed you only put ketchup on a hamburger. Years of eating at our local Burger King and McDonalds had taught me just that. I was first alerted to the issue of mustard on a hamburger at the ripe old age of 10 or 11. In those days I attended sleep away camp during the summer in the Catskill mountains about an 1-2 hours from my house. For those of you who attended sleep away camp, you know as I do ,that the food is one step above animal feed. Made even worse by the fact that it’s usually served and prepared by kids who are to old to be campers and to lame to find something better to do over the summer . So when an opportunity for outside food arises one must take advantage of the situation. In my case I was lucky enough to have a friend with an older sister at our camp. One day she returned from an outing with McDonalds for us. You can only imagine our excitement! However the first bite of our hamburgers instantly led to disappointment and then vomiting, for low and behold there was mustard on our hamburgers. I remember thinking to myself, “how is this possible. Who in their right mind puts mustard on their hamburger”.
Anyway, years went by and as I got older I began to travel the country only to discover that my mustard laden hamburger was not unique to upstate New York. In fact in every city I have lived in or traveled to I discovered they put mustard on hamburgers. After years of having to throw my hamburger in the garbage due to my general distaste of mustard on a hamburger I finally learned to order a hamburger “with ketchup only”. So with all that said, it is clear that the Ketchup only hamburger is a unique staple of the New York City metropolitan area and hence it falls by my definition into the category of New York food or New York cuisine.
To find out a little more about why New York dresses their hamburgers with ketchup only, I decided to try and contact Burger King and McDonalds. Burger King unfortunately offers no way to email the company (sad isn’t it) I wrote them a hand written letter but I don’t expect a response in the near future. McDonalds does have email contacts posted and I sent them a mail asking my question. The response I got back although appreciated is mind numbingly obvious and I was hoping to get a more detail on the history of this food pairing. The response to my letter is below. Hopefully someone who reads this post can answer my question better. Why is there mustard on my hamburger?
Hello Jason:
Thank you for taking the time to contact McDonald's. We truly appreciate customer feedback and welcome this opportunity to share some information with you.
Approximately 85 percent of McDonald's restaurants are owned and operated by independent businesspeople. As independent owners, McDonald's franchise owners have the authority to make certain operating decisions as they relate to their McDonald's restaurant operations. Because of regional preference mustard in not added to the hamburgers in the New York area, please feel free to ask for mustard when you order a hamburger.
Again, thank you for contacting McDonald's. We hope to have the opportunity of serving you again soon under the Golden Arches.
Kayla
McDonald's Customer Response Center

