Ingredients

1 pound baby Yukon Gold potatoes, peeled

Coarse salt and freshly ground pepper

3 tablespoons extra-virgin olive oil

2 tablespoons mayonnaise

1 tablespoon rice vinegar (not seasoned)

1/4 cup chopped sea rocket or mustard greens (including stems)

2 tablespoons chopped sour grass (or sorrel, or more rice vinegar to taste)

Preparation

Place potatoes in a large pot, and cover with water by 2 inches. Add 1 tablespoon salt. Bring to a boil. Reduce heat, and simmer until potatoes are tender when pierced with the tip of a paring knife, 10 to 12 minutes. Drain, and transfer to a large bowl. Let cool for 15 minutes.

Toss potatoes with oil, mayonnaise, and vinegar. Season with salt and pepper. Sprinkle with sea rocket and sour grass; toss to coat. Serve immediately.