How to Make It
In a bowl, cover the anchovies and capers with cold water and let stand for 45 minutes. Drain and pat dry.
In a food processor, combine all of the ingredients except the olive oil and salt and pulse until finely chopped. Drizzle in the olive oil and process until a smooth sauce forms. Season with salt.
Sardines packed in olive oil and crackers, grilled or poached fish, or smashed and fried potatoes.