"I really like this creamier version of the German potato salad and I like it warm or cold. Keeps well and is better the next day. This is an altered version of the traditional German potato salad."
1Place potatoes into a large pot and cover with water; bring to a boil. Reduce heat to medium-low and simmer until pierced easily with a fork, about 10 minutes. Drain and cool.
2Place the bacon in a large, deep skillet and cook over medium-high heat, turning occasionally, until evenly browned, about 10 minutes. Drain and transfer bacon to a paper towel-lined plate to cool.
3Stir white vinegar, cider vinegar, sugar, salt, and black pepper together in the same skillet; bring to a boil and remove from heat to cool completely. Whisk sour cream and mayonnaise into cooled vinegar mixture until dressing is thick and creamy.
4Mix potatoes, dressing, onion, parsley, and chives together in a bowl. Cover the bowl with plastic wrap and refrigerate until chilled, at least 2 hours. Stir bacon into potato salad just before serving.