German Potato Salad - cooking recipe

Ingredients

6 large potatoes, peeled and quartered
1 small onion, chopped
3 tablespoons vegetable oil
3 tablespoons cider vinegar
1/2 teaspoon prepared mustard
2 tablespoons minced parsley
1/2 teaspoon sugar (optional)

Preparation

Boil potatoes until fork tender, approx 15-20 minute drain well and set aside.
In large bowl mix all ingredients together.
Add potatoes and mix well.
Chill in refrigerator.
Serve.