German hot potato salad

1. Potatoes should be firm, cooked, peeled, diced and still hot. Fryi bacon in a large skillet until crisp.
2. Remove the bacon, drain on paper towels, then crumble; reserving the bacon fat. Dissolve cornstarch in water.
3. Sautei onion and celery in the reserved bacon fat over medium heat for about 5 minutes, or until onions are translucent.
4. Add salt, sugar, pepper and dissolved cornstarch to the skillet.
5. Next, add vinegar and bring to a boil over medium heat for 3 minutes.
6. Add the hot potatoes and crumbled bacon, stirring gently.
7. Serve hot, garnished with the sliced stuffed olives.