This is one of those pinch of this pinch of that type recipe. I was bored with traditional potato salad so one afternoon I played around with some different ingredients and after some rather shocking trial and error came up with this...
I’ll try to explain it!
You may use mayo if you must but in aus the mayo is soooo sweet I'd recommend sticking to Miracle Whip!!

Start off with a deep narrow bowl and add:
2 parts miracle whip to 1 part sour cream
Dill weed herb or fresh dill
Dijon mustard
Tarragon
Red wine vinegar
When adding the herbs I lightly coat the top of the mixture with each herb. It’s about 1 heaping tablespoon of mustard and a ‘jigger’ of vinegar. Amounts will change according to how big a batch you want!!

In a large bowl combing diced celery
finely diced onion
several slices of bacon, fried crispy then crumbled
shredded carrot
And of course…boiled potatoes

Add the 'sauce' until you get the consistancy you want!