Ingredients

1/4 cup finely chopped shallot 

2 tablespoons white vinegar 

3/4 cup extra-virgin olive oil 

4 anchovy fillets, chopped 

2 tablespoons capers, rinsed and coarsely chopped 

1 teaspoon Dijon mustard 

1/4 teaspoon coarse salt, plus more to taste 

2 1/2 cups fresh parsley leaves, chopped 

1/4 cup fresh tarragon leaves, chopped 

1 teaspoon lemon zest 

Preparation

Combine shallot and vinegar in a small bowl. Let stand 10 minutes.

Whisk together oil, anchovies, capers, mustard, and salt in a medium bowl. Stir in shallot mixture, then add herbs and lemon zest. Season with salt. Cover and refrigerate until ready to use. Bring to room temperature before serving.