6 ea Potatoes; large * 1 x ;boiling water 1/2 ts Salt 1 ea Onion; medium, minced 3 tb Vinegar 1/2 ts Mustard; prepared 1 ts Sugar 2 ts Dillseed * Potatoes should be peeled and quartered. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++ In medium saucepan cook potatoes in boiling salted water until tender. Drain, reserving 3/4 cup of potato water. Dice potatoes. Add oil and minced onion; toss gently. In small saucepan bring the 3/4 cup potato water to a boil; pour over potatoes and onion. Keep at room temperature for 2 to 3 hours. Stir in vinegar, mustard, sugar, and dillseed. Potato salad will be creamy. Serve at room temperature.