Parsley Mayo Browse more: Recipes Ingredients 1½ cups (packed) fresh parsley leaves1½ cups mayonnaise2 tablespoons mustardKosher salt and freshly ground black pepper Steps Pulse parsley, mayonnaise, and mustard in a food processor until smooth; season with salt and pepper. Previous recipe: Parsley Mashed Potatoes Next recipe: Parsley, Red Onion, and Pomegranate Salad