I got this recipe from a really good smoker. I have done 8 this way of these in the last 18 months to good reviews.
Recipe says boneless, but I normally do bone-in, and keeps the ribs for mysel. I use kosher salt and ground pepper on the outside. I finish in oven on broil for reverse sear.
Ingredients:
9 lb boneless rib roast
15 oz can beef broth
8-10 cloves peeled garlic
1 ½ teaspoons salt
½ teaspoon black pepper
Injection:
Sauté garlic cloves in a little vegetable oil until they are softened.
Put all ingredients EXCEPT rib roast in a blender and blend until smooth.
Using a seasoning injector, inject roast in numerous, random spots until all injection liquid has been used.
Roast:
Rub outside of injected roast with vegetable oil.
Season outside of roast to taste with additional salt and pepper.
Heat smoker or oven to 250 degrees
Place roast in cooker and put temperature probe into center.
Cook until thermometer reads 10 degrees below desired “done temp”
Remove roast from cooker and let rest (on a raised rack) while you bring grill temperature up to 500 degrees. Put meat back into the cooker and sear for 8-10 minutes. Cook time is approximately 15 minutes per pound.