The best potato salad ever

This is my original recipe that I played around with until it was PERFECT! I've had a bunch of requests for healthier recipes. . .they're coming!

3 medium potatoes, peeled and chopped into bite-sized chunks
1/4 cup white vinegar
2 stalks celery, chopped
2 scallions, chopped
1/2 cup sour cream
1/2 cup good mayo
1 teaspoon dry mustard
1 teaspoon celery seed
Paprika
Salt and Pepper

Boil the potatoes in salted water until tender. Drain. Transfer to large bowl and immediately add the vinegar while the potatoes are hot. Add the celery and onions. In a separate bowl, combine the dressing ingredients. Toss with the potatoes once they've cooled some. Chill.