Where do I buy bone marrow bones?
A butcher counter is easiest. Ask for beef marrow bones, split lengthwise (often called canoe cut). Many grocery stores can special order them if you ask a day or two ahead.
Do I need to soak the bones first?
No, but a quick salted water soak can pull out some blood and keep flavors cleaner. If you do soak, keep it to about 30 minutes to 2 hours in the fridge. You can change the water once if it looks very pink. Soaking longer can start to leach a bit of flavor. If you are short on time, skip it and roast anyway. You will still be very happy.
How do I know when marrow is done?
The marrow should look soft and glossy, and be hot all the way through with gentle bubbling at the edges. If it fully liquefies and starts running out, you went a bit long, but it is still usable. Spoon it up and call it “marrow butter.”
Is bone marrow safe to eat?
Yes, when you handle it like raw beef and cook it properly. Buy from a reputable source, keep it refrigerated, and avoid letting it sit out. Before cooking, discard anything that smells off. For doneness, look for marrow that is fully heated through (soft, glossy, and bubbling around the edges), not just “sizzling.” If you have dietary or medical concerns, check with a professional.
What if I do not have a roasting rack?
Use a bed of coarse salt on a sheet pan. Nestle the bones cut-side up so they do not tip. It is an old restaurant trick and it works.
What should I serve with bone marrow besides toast?
Grilled bread is the classic, but it is also great with roasted potatoes, a simple arugula salad, or tucked into a steak night as a starter.
How much bone marrow per person?
As an appetizer, plan on 1 canoe-cut bone per person (2 halves). If the bones are small, or you are feeding big toast scoops, add an extra bone.