
Cooking marrow bones in an air fryer is a quick and easy way to make a delicacy that is creamy, buttery, and full of flavour and nutrients. There are several ways to cook bone marrow, including in the oven, instant pot, crock pot, and air fryer. This guide will focus on the latter method.
| Characteristics | Values |
|---|---|
| Main Ingredients | Bone Marrow, Salt, Pepper, Parsley |
| Other Ingredients | Garlic, Chilli Pepper Flakes, Cayenne Pepper, Fresh/Dried Rosemary, Thyme, Balsamic Vinegar |
| Cut | Lengthwise or Crosswise |
| Temperature | 380-450°F |
| Time | 10-20 minutes |
| Preheat | Yes/No |
| Oil | No |
| Parchment Paper | Yes/No |
| Foil | Yes |
| Broth | Yes |
| Calories | 107-320kcal |
| Storage | Airtight Container, Refrigerate, 3-7 days |
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What You'll Learn

How to season marrow bones before air frying
Before air frying marrow bones, it is important to season them well. Firstly, select high-quality bone marrow from your local butcher or grocery store. The bones should be cut horizontally, or lengthwise, to allow for easier extraction of the marrow.
The most popular seasoning for marrow bones is salt, which can be kosher or sea salt. You can also add black pepper, and perhaps some fresh herbs like parsley or thyme. If you want to add a spicy kick, sprinkle some chili pepper flakes on the bone marrow.
If you want to get creative, there are many other ways to season marrow bones. You can add garlic powder, paprika, or even some diced garlic cloves. You can also make a compound butter by mixing roasted marrow with garlic cloves, lemon zest, capers, fresh herbs, or chili crisp, and then spreading this on your cooked marrow bones.
Another option is to make a bone broth with the bones, which will be full of nutrients and flavor. To do this, season the bones with salt and place them on a sheet pan with fresh garlic, carrots, onions, and celery to attain an optimal flavor.
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How to prepare the air fryer basket
Preparing the air fryer basket for cooking marrow bones is simple. First, decide whether you want to cut your bones lengthwise or crosswise. Cutting them lengthwise will give you thicker slices, while crosswise will result in more pieces that are easier to cook evenly. Rinse the marrow bones in cool water to remove any remaining blood or impurities. Pat them dry with a kitchen towel.
Next, place the bones in the air fryer basket. You can put them in whole or split them in half first—the latter makes it easier to scoop out the marrow later. If your bones are split, place them upright in a single layer in the basket. If you're cooking multiple pieces, you can line the basket with parchment paper to prevent any leakage of the delicious fat from the bottom. However, note that you shouldn't usually put foil or paper in the basket, as this can cause the bones to slide out when they start to soften.
Now you're ready to season your bones. Sprinkle them with salt and black pepper. You can also add crushed red pepper flakes or cayenne for some heat. If you want to infuse your marrow with a garlicky flavour, sprinkle on some minced garlic.
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How long to cook marrow bones in an air fryer
The cooking time for marrow bones in an air fryer depends on the cut and size of the bone, as well as the desired texture of the marrow.
If you cut the bones lengthwise, about 1 inch thick, roast them in the air fryer at 450°F for 15-20 minutes. For crosswise-cut bones, bake at 425°F for 20 minutes. Check smaller bones after 15 minutes to ensure the marrow does not leak out.
Some recipes suggest cooking the bones at 380°F or 400°F for 10 minutes, with an additional 3-5 minutes of cooking time if you want to add minced garlic. You can also cook the bones at 180°F for 15-20 minutes.
To prevent the marrow from leaking out of the bones during cooking, place a piece of parchment paper or aluminium foil at the bottom of the air fryer basket.
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How to serve air-fried bone marrow
Air-fried bone marrow is a delicacy in many countries and can be made in under 20 minutes. It is a good source of B vitamins, nutrients, and collagen, which helps with your skin, bones, and joints.
To cook bone marrow in an air fryer, set the temperature to 400 degrees Fahrenheit (204 degrees Celsius) for 10 minutes. If you want to cook the marrow bones for longer, you can set the temperature to 450 degrees Fahrenheit (232 degrees Celsius) and cook for 15-20 minutes. Preheat the air fryer for the first two minutes. While the air fryer is heating up, season your marrow bones with salt. You can also add pepper, garlic, and parsley to taste.
Once the bones are cooked, transfer them to a serving platter. Sprinkle with chopped parsley and lemon zest. Serve the marrow bones with grilled garlic toasts. Use a small spreader knife to scoop out the marrow and spread it on the bread, like butter. Enjoy immediately while warm.
You can also serve bone marrow with a salad of fresh parsley, shallots, and capers, or with pasta.
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How to store leftover bone marrow
Once you've cooked your bone marrow, you may find yourself with leftovers. But how do you store them?
Firstly, you'll want to let the bone marrow cool completely. It's important not to rush this stage, as putting hot food in the fridge can lower the internal temperature, causing other foods to enter the "danger zone" (between 40°F and 140°F) where bacteria can grow.
Once cooled, you can store your leftover bone marrow in a small dish, tightly covered with plastic wrap or a cover. The bone marrow should have a thick layer of fat on top, which will help it keep. Stored like this, your leftover bone marrow will last in the fridge for up to 2 weeks.
If you want to keep your bone marrow for longer, you could try freezing it. Cryopreservation is a technique that was developed in 1949 by English biologist Ernest John Christopher Polge, who discovered the cryo-protective properties of glycerol. Cryopreservation is now used to store bone marrow for medical uses, and it can be an effective way to store your leftover bone marrow for longer periods.
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Frequently asked questions
Rinse and dry the marrow bones, season with salt and pepper, and place them in the air fryer. You can also add garlic, parsley, or red pepper flakes for extra flavor. Set the temperature to between 380 and 450 degrees Fahrenheit and cook for 10 to 20 minutes, depending on the size of the bones.
Place the bones in the air fryer basket upright in a single layer, and check the bones after 10 to 15 minutes to ensure the marrow is not leaking. You can also put parchment paper at the bottom of the air fryer basket to catch any leakage.
The marrow bones are done when the middle is tender. Use tongs to remove the bones from the air fryer and set them on a dish. Then, use a spoon or knife to scoop out the marrow.







































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