Onion-Caper Walnut Relish
Using a mortar and pestle, roughly pound walnuts; transfer to a medium bowl. Add garlic to mortar and pound to a paste; add to same bowl. Stir in capers, onions, parsley, vinegar, and olive oil. Season with salt and pepper.Advertisement
To make this recipe as prepared on "The Martha Stewart Show," use 1 cup of extra-virgin olive oil.