Stonewall Kitchen Blue Cheese Herb Mustard: made from stone-ground seeds, mustards are a cook's secret ingredient. Stonewall Kitchen boldly flavored Blue Cheese Herb Mustard adds a burst of flavor to a roast beef sandwich, or as a coating for roast chicken, pork or beef. Mustards are delicious used to add zest to vinaigrettes, blended into dips for extra flavor, stir into potato salad or spread on your favorite sandwich.