Bone Marrow Beef Stock

 Bone Marrow Beef Stock

 4 Servings | 10-minute Prep Time | 8-hour and 30-minute Cook Time | Overnight Rest Time

Ingredients

2 lbs. Beef Marrow Bones (femur, tibia, shank bones), ask your butcher to cut them into 4-5 inch pieces
2 Yellow Onions, peeled quartered
3 Carrots, peeled and quartered
2 Celery Ribs, quartered
3 Garlic Cloves
1 tsp. Whole Black Peppercorns
1 Bay Leaf
3-5 Fresh Thyme Sprigs 

Instructions

Preheat oven to 400°F.

Wash the bones thoroughly.

Place bones, yellow onions, and carrots on baking sheet. Roast for 30-40 minutes, turning halfway through, until they start to brown (pay attention to any odd angles of bones, do not let them burn).

Remove the baking sheet from the oven.

Place onions and carrots in a dish for later use, set in refrigerator to stop cooking process.

Place bones in 3-quart pot, fill pot with cool water until the bones are covered by about 1 ½ inches of liquid. Cover pot with lid. Bring to slow simmer over medium heat, ideally over a precision simmer burner. Drop heat immediately as simmer starts.

Bare simmer bones for 6 hours. Use instant-read thermometer to monitor temperature every hour. Temperature should be at 180°F as consistently as possible. Do not let it get below 179°F or above 190°F, as marrow bones contain more collagen than typical stock bones and these temperatures can produce undesired, fatty, results.  Do not stir the stock. Do not shake the stock. Do not bump the stock. Do not move the stock. Delicately skim any fat off the top of the stock but do your best not to move the liquid too much.

*The stock should remain clear – you should be able to see the bottom of the pot through the stock the entire time. This stock will not become dark like store-bought beef stocks that contain molasses, tomato paste, or other added ingredients that darken the color.  The final color of this stock will be closer in resemblance to chicken stock. *

After 6 hours, add the mirepoix and continue to bare simmer for 1 hour. Delicately skim as needed.

Add bouquet ingredients (garlic, peppercorns, bay leaf, thyme sprigs) – don’t worry about tying them up in cloth, everything is getting strained later. Continue to bare simmer for 1 more hour. Again, delicately skim as needed.

*Salt is missing from this stock on purpose. (Consider the way unsalted/salted butter is sold.) Add salt as necessary to season when you are using this stock in recipes, so you have greater control over the final product. Store-bought stocks generally have too much salt and you can’t control the content properly. *

Remove from heat and cool over an ice bath, stirring frequently. Strain solids.

Place the stock in a covered container in the refrigerator overnight. Skim any solidified fat from the top in the morning. 

*This stock is perfect for French onion soup. *



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