beef burger with southern potato salad

I decided not to make the roasted tomato ketchup and just go with the Heinz in the icebox and just have any easy-going hamburger night.  I prefer no onions in my potato salad, so I left them out -- it turned out great.  I sure love good potato salad.  We did a taste test of the pickled onions before dinner and they did not pass -- just way too sour for our taste.  I am considering adding some simple syrup and serving with our brisket tomorrow night.  We will do another taste test ahead of time before setting them out for guests, though!