<http://schema.org/recipeInstructions>
" Prepare outdoor grill for covered direct grilling on medium. In small bowl, stir together mayonnaise, parsley, garlic, and 1/4 teaspoon freshly ground black pepper; set aside. In 12-inch skillet, heat oil on medium-high. Add onion; cook 3 to 4 minutes or until beginning to soften, stirring occasionally. Add mushrooms, water, sugar, and 1/4 teaspoon salt; cover and cook 5 to 6 minutes or until mushrooms are tender, stirring occasionally. Shape beef into four 3/4-inch-thick burgers. Lightly sprinkle with 1/4 teaspoon each salt and freshly ground black pepper to season both sides. Grill burgers, covered, 7 minutes for medium or until desired doneness, turning over once. Top each burger with 1/4 cup onion mixture and 1 tablespoon cheese. Cover; cook 1 minute or until cheese has melted. Serve on buns with garlic mayonnaise and lettuce."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.delish.com/cooking/recipe-ideas/recipes/a31035/burgers-french-onions-recipe-ghk0611/?src=shelter_footer>