<http://schema.org/recipeInstructions>
" Combine vinegar, sugar, and salt in a medium saucepan. Bring to a simmer over medium heat, stirring constantly to dissolve sugar. Add onion; simmer 2 minutes. Drain well; transfer onion to a bowl and refrigerate to cool while grilling burgers. Meanwhile, combine meat, 3 tablespoons barbecue sauce, and pepper. Form into 4 patties, 5 inches in diameter and 1/2-inch thick. Preheat grill. Grill patties 5 minutes per side or until no longer pink in center. Spread remaining 1/4 cup barbecue sauce over patties; top with cheese. Grill 1 minute or until cheese is melted. Serve patties and pickled onion in rolls.Serving size is 264 grams. Each serving: 5 g monounsaturated fat, 2 g polyunsaturated fat, 1 RE vitamin A, 0 mg vitamin C, 227 mg calcium, and 4 mg iron."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.delish.com/cooking/recipe-ideas/recipes/a12782/fiesta-cheeseburgers-pickled-red-onion-recipe-sgt0710/>