Before jumping to the recipe, don't miss the HELPFUL RECIPE TIPS in the post! I hope you'll find them useful and will love this fantastic recipe.
Well, this Perfect Prime Rib Recipe has spoiled us for good. This mouthwatering dish is the stuff low carb eaters dream of.
If you've ever been intimidated by cooking your own Prime Rib Roast at home you can rest assured that you CAN do this and it's going to be terrific.
The instructions and timing are an important formula so please give them a read before tossing that beautiful roast in the oven. Cheers!
- 4 lbs Prime Rib Roast
If your roast is a little bigger or smaller...no problem. I'll explain the exact timing calculation in the " Tips & FAQ's" section.
It's important so don't miss it.
- Butter - melted
I highly recommend using butter in this recipe. But, it's your steak so you can use another oil if you like.
- black pepper
- Herbes de Provence
Herbs de Provence is amazing on this Prime Rib Roast but I understand that not everyone has it "on hand". You can get it here.
Or, you can make your own from this recipe on Rachelcooks.com. I like this option because you can add more of what you like and leave out whatever you want to.
Additionally, you can leave it out if you don't like this spice and use your own.
👨🍳How to make the Prime Rib:
1.) Remove the Prime Rib Roast from the package and pat dry with a paper towel.
Don't skip this step. This is an expensive piece of meat and you want all of the melt in your mouth flavor you can get out of it.
2.) Pour melted butter on all side of the roast using a brush if necessary to make sure the roast is coated.
Feel free to use ghee or another oil if you like but I highly recommend butter.
3.) Mix all of the spices in a bowl and then rub them into the roast.
Massage the spices into the meat. Cover with foil and let rest on the counter 4 hours before you need to start cooking.
Yes, leave the roast at room temp for four hours. I know that it might sound strange to leave meat out but this step is important.
4.) Preheat oven to 500°F or 260°C . Make sure your oven preheats all the way before adding the roast.This is KEY.
In my younger days I would just put the roast in the oven before it was preheated....don't do this!
This Prime Rib recipe is an exact formula.
Follow this Formula once your roast is in the oven:
5.) Put the uncovered prime rib roast in the oven, fat side up and bake for 20 minutes exactly.
Your cooking time will vary depending on your exact roast size. I'll cover that in the FAQ's in case your roast isn't exactly four pounds.
6.) Turn off the oven at the 20 minute mark to rest - DO NOT OPEN THE DOOR! Let the roast sit in the oven for 30 minutes without being disturbed.
I know that you might want to peek...but don't. Trust the process. It'll be worth it when that tender meat melts on your tongue.
7.) Then, turn oven back on to 275°F or 135°C to slow roast for 90 minutes.
If you have a newer, insulated oven, it will not have yet cooled to below 275F (135C). This is actually ideal.
Once your oven cools to below 275F, it will kick back on and continue slow roasting your Prime Rib.
This will make for a perfect medium rare roast.
Take it out of the oven 10-15 minutes earlier for very rare meat. ( I don't recommend this but it's your steak ;))
8.) Slice and serve with horseradish and au jus if desired.
Au Jus and prepared horseradish make this steak special. You can find the Easy Au Jus instructions here.
📋Tips & FAQ's:
My Prime Rib Roast is a different size!
No problem. To perfectly calculate the amount of time that you will sear your roast at 500F all you need to do is this:
Multiply the exact weight of your roast by 5 and round to the nearest number. That is going to be the exact time that you need to bake your roast at 500F before turning off the oven.
The rest of the calculations will stay exactly the same.
For example: Say you have a 6 pound roast ~
6lbs x 5 = 30 Minutes.
You would bake at 500F for 30 minutes, and follow the rest of the instructions exactly as they are written.
Is your roast 4.9 pounds?
4.9lbs x 5 = 24.5....just round up to 25 minutes. Or down, if you like rarer meat.
Bake the Prime Rib for 25 minutes and turn off the oven...then follow the rest of the instructions.
See? Easy peasy.
I like my Prime Rib SUPER rare!
Take it out of the oven 10-15 minutes earlier than the recipe calls for.
I don't recommend doing this but it's your dinner.
This formula renders a perfectly cooked roast that's more done on the outside slices, but still pink on the inside of the slice.
What Low Carb Dishes go well with this meal?
This is a luxurious meal. Make something you LOVE to go with it.
Self care is the glue holding this year together!
Salad!!!! Here are a few that are perfect for your meal:
- Sugar Free Cranberry Sauce
- or the slightly more savory Cranberry Chutney
- Bacon Cauliflower Mash
- Garlic Parm Green Beans
Rolls & Biscuits:
- Petty Aunt Pie
- Nut Free Devils Food Cake
- Carrot Cake
- Chocolate Mousse
- Chocolate Covered Strawberries (Romantic!)
I think that's it for the Perfect Prime Rib Roast Recipe!
I hope your roast comes out GREAT!
Please, leave any questions or comments below and I will answer them as quickly as possible.
Prime rib is a big treat around here and I used to be too intimidated to make it.
I was afraid that I would "screw up" this expensive cut of meat and have to kick myself for it.
But, this method takes ALL of the guesswork out of it and anyone can make the PERFECT Prime Rib. Go for it!!!
Ta Ta for now friend,
Readers checked out these recipes next:
The Perfect Prime Rib Recipe is posted below !
Perfect Prime Rib
- 4 lbs Prime Rib Roast See the post for exact instructions if your roast is smaller or larger. This is cooking science and the timing needs to be precise for the best results.
- ¼ cup butter melted
- 2 teaspoon black pepper
- 1 teaspoon salt * to taste
- 1 teaspoon Herbes de Provence * to taste
- Remove the Prime Rib Roast from the package and pat dry.
- Pour melted butter on all side of the roast using a brush if necessary to make sure the roast is coated.
- Mix all of the spices in a bowl and then rub them into the roast. Massage the spices into the meat. Cover with foil and let rest on the counter 4 hours before you need to start cooking.Yes, leave the roast at room temp for four hours.
- Preheat oven to 500°F or 260°C . Make sure your oven preheats all the way before adding the roast.This is KEY.
- Put the uncovered prime rib roast in the oven, fat side up and bake for 20 minutes exactly. See post for timing if your roast is larger or smaller than 4 pounds.
- Turn off the oven at the 20 minute mark to rest - DO NOT OPEN THE DOOR! Let the roast sit in the oven for 30 minutes without being disturbed. Just wait and do nothing during this 30 minute time.
- Then, turn oven back on to 275°F or 135°C to slow roast for 90 minutes. DO NOT OPEN THE DOOR TO PEEK. If your oven is hotter than 275°F the oven will not turn back on until it cools to below this temp. This is normal and what is supposed to happen.This will make for a perfect (just under) medium rare roast. Take out 10-15 minutes earlier for very rare meat. ( I don't recommend this but it's your steak ;))
- Slice and serve with horseradish and au jus if desired. See post for link to simple au jus recipe instructions.The outside slices will be darker and the center will be warm and pink. This way, everyone gets their favorite!
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The nutritional information for the Perfect Prime Rib Roast Recipe is provided as a courtesy.
We are pretty careful about our figures but if you ever feel like anything is off please feel free to do your own calculations.