Greek Hot Potato Salad

4 to 5 large potatoes
1 large onion, sliced
1/2 cup celery, diced
Salt and pepper
1/2 cup olive oil
Juice of 2 lemons
Parsley, chopped

Boil potatoes until tender and keep hot. Slice onion into a large bowl. Sprinkle with salt and cold water,and allow to stand about 5 minutes; drain.
Slice hot potatoes and add to onions. Add olive oil, lemon juice and celery. Mix well to absorb dressing.Season to taste, and garnish with chopped parsley.
Serve warm.