Potatoes make satisfying side dishes in all seasons, summer included. What would a picnic be without potato salad? Opinions on which ingredients are essential to potato salad can vary (maybe your must-include is hard-cooked egg, or diced onion, or sweet pickle relish). Regardless, the starting point must be a basic recipe that promises a good outcome every time. My stripped-down method does just that -- all the salad needs are creative additions to make it your own.