Ingredients

2 tablespoons white-wine vinegar

1 tablespoon fresh orange juice

1 teaspoon coarse salt, plus more to taste

1/4 cup extra-virgin olive oil (preferably lemon-infused)

10 ounces mixed salad greens, such as baby spinach and red-leaf and Boston lettuces

1 pound fresh blackberries (about 4 pints)

9 ounces feta cheese, preferably French, crumbled

Sugared Walnuts

Freshly ground pepper, to taste

Preparation

Whisk together vinegar, orange juice, and salt. Add oil in a slow, steady stream, whisking until emulsified.

Put salad greens, blackberries, feta, and walnuts into a bowl. Drizzle with vinaigrette, and toss gently. Season with salt and pepper.