Ingredients

2 tablespoons olive oil 

2 pounds raw beef bones with some meat, such as shanks, ribs, and shins 

1 onion, coarsely chopped 

1 carrot, coarsely chopped 

1 rib celery, coarsely chopped 

1/2 head garlic 

Preparation

Heat oil in a large Dutch oven over medium-high heat. Add bones and brown on all sides, about 5 minutes. Add onion, carrot, celery, and garlic; cook until lightly browned, about 5 minutes more.

Add 10 cups of water and bring to a boil. Immediately reduce to a simmer, cover, and cook 1 1/2 hours. Skim surface and strain stock before using.