Ingredients

2 anchovy fillets 

2 tablespoons whole milk 

1 cup mayonnaise 

3 tablespoons finely chopped fresh flat-leaf parsley 

3 tablespoons finely chopped fresh chives 

2 tablespoons finely chopped fresh chervil 

2 teaspoons finely chopped fresh tarragon 

1 tablespoon finely chopped scallion 

1 tablespoon tarragon vinegar 

Coarse salt and freshly ground pepper 

Preparation

Soak anchovies in milk for 15 minutes. Drain; discard milk. Rinse anchovies.

Puree in a blender with remaining ingredients until smooth and pale green. Add 1 to 2 tablespoons water, if needed. Season with salt and pepper.