<http://schema.org/recipeInstructions>
" In a medium bowl, with wire whisk, stir together red wine vinegar, Dijon mustard, salt, and freshly ground black pepper. Continue whisking and add extra-virgin olive oil in slow, steady stream. Whisk until well blended and emulsified. Cover and refrigerate up to 3 days.Nutritional information is based on a 2-tablespoon serving."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.goodhousekeeping.com/food-recipes/a9918/classic-vinaigrette-dressing-recipe-ghk0610/>