Ingredients

Coarse salt

1 pound haricots verts or thin green beans, trimmed

1/2 cup pecans

3 tablespoons sherry vinegar

1 teaspoon sugar

Freshly ground pepper

1/4 cup olive oil

1 teaspoon freshly grated lemon zest

Preparation

Preheat oven to 425 degrees. Bring a large pot of water to a boil; add salt and haricots verts. Cook beans until bright green and crisp-tender, 3 to 4 minutes; drain. Transfer to a serving dish.

Meanwhile, spread pecans in a single layer on a rimmed baking sheet; toast in oven until fragrant, about 5 minutes. Coarsely chop nuts when they are cool enough to handle.

Whisk vinegar, sugar, and 1/4 teaspoon salt in a small bowl; season with pepper. Whisking constantly, pour in oil in a slow, steady stream; whisk until emulsified. Just before serving, gently toss beans with vinaigrette and chopped nuts; sprinkle with zest. Serve warm.