Prime Rib Injection Marinade

By Todd Martin November 25, 2023 4 mins read 173 Views

This prime rib injection marinade will take your beef roast from good to stellar. By penetrating deep into the meat, this flavorful blend enhances its natural beefiness and infuses it with a delicious mix of butter and garlic.

Whether you are grilling, smoking, baking in the oven, or cooking your prime rib on a rotisserie spit, one thing is for sure: it will benefit from this fantastic prime rib injection marinade! The beauty of this recipe is that it takes minutes to make, and the injection can be applied the night before. We recommend using it in tandem with our Butter-Herb Prime Rib Rub or a simple SPG for Beef.

You will need a good-quality meat injector. Recipe makes enough marinade solution for a 10-14 pound roast (bone-in).

Why this recipe works

The marinade will flavor the beef roast from the inside out.
It will keep your prime rib moist and juicy as it cooks.
This injection marinade is easy to make and calls for simple ingredients.
It can be made up to 5 days in advance and stored in the refrigerator until ready to use.
Helps to make a flavorful au jus.
It can be used for other cuts of beef, like :
Thick tomahawk steaks
Eye of round
Beef tenderloin
Beef plate ribs
Venison Tenderloin

Ingredients

Unsalted butter, Irish or Danish butter recommended
Better Than Bouillon roast beef base (or your favorite beef base, beef stock or beef broth)
Dry red wine (or red wine vinegar diluted with water)
Worcestershire sauce
Soy sauce (use Tamari for a gluten-free option, or low-salt soy sauce)
Garlic powder (sub granulated garlic or onion powder)
Black pepper

If you plan to pre-season your prime rib, either reduce the salt content used in your rub, or use low-sodium alternatives to make this injection marinade.

Steps to make it

Melt the butter in a small saucepan over medium heat.
Stir in beef base, water, red wine, Worcestershire sauce, garlic powder, and black pepper.
Let the mixture come to a light simmer, stirring occasionally.
Once all the ingredients are well combined, and the beef base has dissolved, remove the pan from the heat.
Allow the mixture to cool until it reaches room temperature or when you can no longer feel the warmth radiating from the surface of the liquid.

How to Use a Prime Rib Injection Marinade

Place your prime rib roast in a large baking dish or roasting pan.
Draw some of the prime rib marinade into the injector.
Plunge the needle into the meat about 2 inches deep and release the liquid while slowly pulling the needle out. Do not inject the bone section.
Some liquid might spill out. That’s okay. Blot it away with a paper towel.
Repeat the process every 2 inches around the roast.
Cover the prime rib with plastic wrap and place it in the refrigerator for 4-12 hours.
Discard the remaining injection marinade.
Take the roast out of the fridge 1 1/2 hours before cooking. Slather the rub onto the meat and let it stand at room temperature. Cook as directed.
Make this prime rib injection marinade up to 5 days before you intend to cook the roast. Store the mixture in an airtight container in the refrigerator and let it stand at room temperature for 30-45 minutes before using.

Try more of our injection marinade recipes!