A decade ago, bone marrow was untouchable as a fatty organ meat that was declared unhealthy and unfit for human consumption. Enter keto diet and bone marrow suddenly became healthy and delicious.
Weโve been enjoying bone marrow long before the phrase โketo dietโ was coined. In fact, Iโve been eating bone marrow since I was a little girl. I drizzled a mixture of fish sauce and calamansi juice directly into the fatty mass and scooped it with a spoon. I loved it then; I love it still.
This is one of those recipes that my older daughter, Sam, would call a no-brainer. Just put the bones in the slow cooker, add spices and seasonings, turn on the slow cooker and go to sleep. When you wake up the next day, it’s ready.

Are the bones cooked in water or broth? Just plain water. The slow cooking will turn the water into broth. If this were a stew, I’d opt for broth for the cooking liquid, but this is a soup and cooking the bones in broth might result in something too rich that it’s already overwhelming. So, just water.
The cooking liquid is tasted after the bones have been scooped out and transferred into bowls. Seasonings are adjusted to make sure it tastes perfect.
Now, the dining part. Will a spoon fit into the boneโs cavity? That depends on the size of the bone and the cavity. If the diameter of the cavity is narrower than the width of a soup spoon, provide a teaspoon (one with a long handle is ideal) for scooping out the marrow.
And if the cavity is narrower than the width of a teaspoon? Well, you have two options:
1. Provide a wooden spatulaโthe kind the accompanies ice creamโor a popsicle stick.
2. Something Iโve never tried but have seen on social media and TV showsโa large drinking straw. Instead of scooping out the marrow, it can be sipped.
Slow cooker bone marrow soup

Equipment
- Slow cooker
Ingredients
- 3 pieces cross-cut beef shank bones
- 4 cloves garlic
- 1 onion - halved
- ยฝ teaspoon dried rosemary - (a whole sprig if using fresh)
- salt - to taste
- pepper - to taste
- finely sliced scallions - to serve
Instructions
- Place the beef shank bones in the slow cooker. If one side is closed and the other side open with the marrow exposed, place the bones closed side down to prevent the marrow from falling out.
- Add the garlic cloves, onion halves, rosemary, salt and pepper to the bones.
- Pour in one and a half to two liters of water (depending on the size of your slow cooker).
- Set the slow cooker on LOW and leave for twelve hours.
- Place the beef shank bones in soup bowls.
- Taste the broth; add more salt and pepper, if needed. Strain.
- Pour strained broth over the beef shank bones.
- Sprinkle in finely sliced scallions before serving your no-frills slow cooker beef bone marrow soup.