http://screen.yahoo.com/mayo-less-potato-salad-104500669.html
1/3 cup red wine vinegar
2 lbs. red potatoes
1 bulb fennel
4 stalks celery
3 tsp parsley
1 onion
2/3 cup extra-virgin olive oil
chop celery, onion.
soak onion in vinegar to reduce sharpness
combine in dish vinegar, salt, pepper to taste.
add olive oil to mix.
add 3/4 tsp sugar combine completely
add onions and rest of vinegar to mix
add onion, fennel bulb (chopped) and celery
add parsley
mix in and combine with boiled potatoes