Ingredients

Zest and juice of 1 lemon

3 anchovy fillets, finely chopped (optional)

1/4 cup extra-virgin olive oil

Coarse salt and ground pepper

6 ounces red new potatoes, well-scrubbed and cut into 1/2-inch chunks

2 garlic cloves, thinly sliced

1 small zucchini (about 6 ounces), thinly sliced lengthwise, then cut lengthwise into very thin strips, and then halved crosswise

1 small head of fennel (about 8 ounces), tops removed, thinly sliced crosswise

2 ounces radishes (about 4), ends trimmed, thinly sliced

2 scallions, thinly sliced

1/2 cup flat-leaf parsley leaves

2 tablespoons capers, rinsed and dried

Preparation

For the vinaigrette, combine the lemon zest and juice in a large bowl. Add anchovy, if using, and mix well. Slowly add oil in a steady stream until incorporated; season generously with salt and pepper.

Place potatoes and garlic in a small pot of cold salted water. Bring to a boil over high heat, reduce to low, and simmer until potatoes are cooked through, but not falling apart, about 7 minutes. Drain well and add to the bowl with the vinaigrette. Toss well; cool to room temperature.

Add zucchini, fennel, radishes, scallions, parsley, and capers to bowl; toss well and serve immediately.