How do you like your potato salad?  What’s your favorite condiment on a chicken sandwich?  Growing up in Western Pennsylvania, I was raised on Miracle Whip.  A recent conversation with friends seemed to inform me that I was brought up missing out on pure mayonnaise.  So, what’s the difference and which is best? Mayonnaise is condiment sauce made up of oil, egg yolk, vinegar or lemon juice. Early accounts say that as long as there has been olive oil, there has been some form of mayonnaise.  Another account says it was discovered accidentally by a British woman in 1459, who was trying to create a custard. However it happened, it appears the French first exported it into their country after defeating the British in a port battle in 1756.  The name was derived from the word moyeu, which is French for egg.  Another account says it may have finally earned the official name mayonnaise after Charles de Lorraine, duke of Mayenne, who finished his chicken dinner with the sauce on the side before being defeated in a major battle. While the are various reports of its creation overseas, the product’s roots in the United States is much more clear. In the US, mayonnaise was first sold in New York City’s Upper West Side. In 1905, the first ready made mayo was on sale at Richard Hellmann’s deli on Columbus Avenue. After being a local success, it was mass marked 7 years later and introduced as Hellmann’s Blue Ribbon Mayonnaise. At the same time on the West Coast, Best Foods created their own version of mayonnaise which became very popular on their side of the country.  Best Foods eventually bought the Hellmann’s company in the early 1930’s, but the demand was so high for both products...