Ingredients

1/4 cup extra-virgin olive oil

1 tablespoon chopped flat-leaf parsley

1 tablespoon chopped fresh chives

1 tablespoon chopped fresh tarragon

1 tablespoon fresh lemon juice

Kosher salt and freshly ground black pepper

1 pint fresh blackberries, halved if large

Preparation

Whisk oil, herbs, and lemon juice in a small bowl. Season to taste with salt and pepper. DO AHEAD: Vinaigrette can be made 1 day ahead. Cover and chill. Let return to room temperature before continuing. Gently fold in blackberries.