I used mayo as that's what we prefer - with miracle whip I think this would have been too sweet, maybe half and half is the most I'd do. The only thing I left out was the mustard and I used a good quality onion powder and minced garlic. I originally used it to go over some breaded pork chops but used leftovers to dip carrots and celery in. A very good all purpose sauce!
I made this up to go with fish and it went well. Thank you!