<http://schema.org/recipeInstructions>
" Warm olive oil in a large soup pot over medium heat. Add onions, mushrooms, salt and 1/8 tsp. pepper; saut\u00E9 gently, stirring occasionally, for 10 to 12 minutes Meanwhile, combine ground sirloin, egg, bread crumbs, onion powder and another 1/8 tsp. black pepper, mixing thoroughly. Shape into meatballs \u00BD inch in diameter; add to pot with vegetables. Pour in broth and bring to a gentle boil. Reduce heat to low and simmer 30 to 40 minutes. In a small pan, melt the butter; add flour and cook 1 minute, stirring, until thickened. Add milk and cook, stirring constantly until thickened, about 2 minutes. Stir into soup. Remove soup from heat and immediately ladle into bowls. Top each serving with 1 Tbsp. sour cream."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.delish.com/cooking/recipe-ideas/recipes/a29034/mushroom-meatball-soup/>