French Potato Salad
With so many places to dine al fresco in and around Boston, the question is not where to picnic, but what to tuck into the basket. In the heat, mayonnaise dressing makes everyone nervous, but potato salad is a must. This French potato salad calls for mustard instead of mayo; a vinaigrette adds a piquant touch to the potatoes, here tossed with freshly picked green beans. When the potatoes are tender, toss them quickly with red onion, white wine, and vinegar. As they cool, the potatoes absorb the zippy marinade.