Mayonnaise, butter and sugar are a few ingredients I believe. Not sure what else.
Here you go:
1-1/4 cup Hellmann's mayonnaise *
1/4 cup water
1 teaspoon tomato paste
1 tablespoon melted butter
1/2 teaspoon garlic powder
1 teaspoon sugar
1/4 teaspoon paprika
dash cayenne pepper
Using a fork or a whisk, blend all ingredients together thoroughly until well mixed and the sauce is smooth. Refrigerate overnight to allow flavors to blend. Bring to room temperature before serving.
The sauce will NOT taste right if you don't let it sit overnight. And please don't try to substitute ketchup for the tomato paste! The water is needed to bring this to the right consistency.
* Hellmann's is called "Best Foods" west of the Rockie Mountains. Use other mayos at your peril - many cheap brands make the sauce taste too much like mayo.
Also says NOT to use any low fat/fat free mayo as the results will not be the same.