This recipe is so freaking easy. It's also very flavorful and generally well received, somewhat to my surprise as I tend to use vinegar more than the average bear. Anywho, here ya go.
You will need:
about 1 lb Russian Fingerling potatoes, cooked until tender
1 white onion, chopped finely
1/2 cup fresh dill, de-stemmed but you don't have to chop it if you don't want to
3 tbsp herbed vinegar (look in the kosher section of the grocery store, it's in a green bottle)
2/3 cup sour cream
salt to taste, about 1 1/2 tsp
Chop the potatoes into bite sized pieces. Mix the ingredients together and chill for about half an hour. Voila, done!