While I was writing up this recipe, I realized that this is my sixth potato salad for The Kitchn. Six potato salad recipes — I didn't even realize that I loved potato salad so much! But I do — a simple, fresh, impromptu potato salad is a wonderful way to add a little extra greenery to a meal, and if you treat the salad right, it doesn't need to be heavy or mayonnaise-laden at all. Take this one, for instance — not a smear of mayonnaise in sight.
This salad is a simple spring potato salad. It has green onions for savory, and red radish slices for crunch and color. I also call for a couple specialty ingredients: smoked olive oil and citrus ponzu. The ponzu gives just a hint of zesty citrus flavor, and it cuts through the heaviness of the potatoes. The smoked olive oil goes a long way, giving a lightly smoky flavor to the salad. (But not too much; this doesn't taste like a barbecue.)
If you don't have either of those ingredients, it's fine! Substitute regular olive oil, and use rice vinegar (perhaps with a squeeze of lemon) for the ponzo. A good potato salad is always adjusted to taste, too; different potatoes can soak up the ingredients differently. So taste as you, and adjust the flavors accordingly.
This is a really lovely simple dinner, too — just add an egg or a side of asparagus or fennel to make it a full weeknight meal.