Mixed-Olive Tapenade

Sprinkle anchovies with salt; mash into a paste with the side of a knife. Transfer to a skillet with remaining ingredients, stirring to combine. Cook over medium heat until mixture is fragrant and comes to a bare simmer, 2 to 3 minutes. Let cool slightly and serve, or refrigerate in an airtight container up to 1 week; gently reheat in a skillet or microwave before serving.