Potato Salad

Just a simple mayonnaise-free variant on potato salad I make from time to time:

1. Wash and boil small russet potatoes with the skins on (20-30 minutes, until done).
2. Toss some green beans into the water a minute before the potatoes are done (to blanche).
3. Drain and rinse the potatoes and beans.
4. Add plenty of mustard and olive oil, salt, pepper, fresh dill and chives.