A while ago, I introduced you to Beef Marrow Bones and included a short recipe illustrating an appetizer in which the marrow form certain can be enjoyed as a delicacy by itself. I also mentioned, in that post, that the primary use for beef marrow bones is generally for stocks. As such, as most of my readers will immediately recognize, they are equally useful in the preparation of soups.
One could certainly braise large number beef marrow bones in a suitable liquid, along with other ingredients, and make a great soup that way alone, but, while the result would be very hearty indeed, it would also be necessarily, well… ‘rustic’ in appearance (not that there is anything wrong with that, of course)
Anyway, it is possible to make a soup that has a slightly more ‘elegant’ presentation, and which also allows one to enjoy the pleasure of extracting the marrow separately (rather than have it dissolve in the stock). I did this for the soup you see pictured above by using some pre-roasted marrow bones as follows:
First, I roasted 8 marrow bones and then used five them to make a stock by simmering them at very low temperature (to prevent cloudiness). I also added some vegetable trimmings and a little white wine. I then blanched some bok choy, and grilled slices of mushroom and set these aside. For the final cooking … I sautéed onion in a pot, added my remaining three marrow bones and simmered them in the strained stock for a half-hour or so. Finally, I added the bok choy and mushrooms, seasoned with salt and pepper, then simmered for a just a little while longer and served…