Deb, I'm a recipe kinda girl...guess what? I don't have a recipe but
I can tell you what I put in it. My grandma showed me how to make it because it was the best on the planet. It's really to taste. You'll know when it tastes perfect to you. Here's what I put in it.
potatoes, boiled whole, cooled and diced in bite size pieces
onion, diced
hard boiled eggs, diced
mayo
sweet pickle relish including some of the juice
salt and pepper
I add mayo until it's creamy and relish to my taste. Then I might add more salt or a little bit of sweet gherkin juice, The juice brings in a nice little touch of vinegar along with the sweetness. I also add a sprinkling of sugar. Sugar often can bring out flavor just as salt will. It's all to taste and texture. Pickle juice will loosen the mixture as well as flavor. Just use small amounts until it tastes great. It also need to stand. I always make it the day before I want to have it and check for flavor and texture the next morning adding whatever it needs. Sorry I can't be of more help.