Measure 1/4 cup each of chives (or green onions), tarragon, and parsley, and add to food processor. Pulse processor until the fresh herbs are finely chopped.

Then add lemon juice, white wine vinegar, and anchovy paste (or canned anchovies) and pulse a few times more.

Add mayonnaise, sour cream, salt, and freshly-ground black pepper and run the food processor about 20-30 seconds, or until ingredients are well combined.

Chill at least a few hours before serving.

This will keep in the fridge for at least a week, although it probably won’t stay around for that long!