Prime Rib Soup is the simple, but oh-so-delicious side effect of one of the best known things on the planet – a prime rib. A super flavorful broth, tender mushrooms, and wonderful pieces of beef come together quickly and easily for a soup that you’ll crave all year long!
Grab a piece of crusty bread for dipping and let’s get started!
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Prime Rib is my favorite. It really is. It’s tender and lovely and I will make it anytime we have a special get-togethers. Not only is one of the best things on the planet, but you can turn the leftovers into an amazing soup. Prime Rib Soup is just incredible. Full of tender beef, mushrooms, and a broth that is so flavorful, you’ll be sitting in wait until the next time prime rib pops up on the menu.
The soup is not only delicious, but it’s easy and you can customize it so many ways. You can add in veggies or pasta. You can even switch up the proteins if you are in the mood for the broth portion, but don’t have leftover prime rib laying around.
Make it during the holidays with leftovers, serve it to friends on special occasions, or just enough it on nights when everyone is in the mood for comfy and cozy bowls of deliciousness. Just don’t forget some bread for dipping!
prime rib soup ingredients
- Leftover Prime Rib
- Butter
- Yellow Onion
- Garlic
- Cremini Mushrooms
- Beef Broth
- Beef Broth Base
- Dried Thyme Leaves
- Dijon Mustard
- Worcestershire Sauce
- Kosher Salt and Fresh Ground Pepper
- Sour Cream
- Fresh Parsley, Chives, or Thyme, for garnish
recipe tools
- Chef’s Knife
- Cutting Board
- Dutch Oven
- Ladle
- Soup Bowls
- Measuring Cups
- Measuring Spoons
- Spatula
how to make prime rib soup
Prime Rib Soup is so close I can almost taste it! And, because it’s super easy and quick, it’ll be on the table in no time!
To begin, in a large dutch oven, sauté diced onions in the butter until the become translucent. Add the garlic and dried thyme leaves, cooking just until they become fragrant.
Add the beef broth to the dutch oven along with the beef broth base, Worcestershire sauce, and dijon mustard. Bring the broth mixture to a simmer. Taste for salt at this point, adding some along with fresh ground pepper if desired.
Add the sliced mushrooms to the simmering broth and cook until the mushrooms are softened.
In a separate mixing bowl, whisk the sour cream along with some of the beef broth. This will help the sour cream mix into the soup a bit better and prevent lumps, bumps, and automobiles. I kid. It only helps prevent lumps.
Pour the sour cream mixture into the soup, stirring until it’s combined. Again, taste the broth. Make sure your salt level is good. If you need more, add more.
Add in the prime rib pieces, cooking until they’re just warmed through.
Garnish with a dollop of sour cream, fresh herbs, and fresh cracked pepper. We always have to serve with a side of crusty bread for dunking. Enjoy!
a word about beef broth
Everyone will use a different beef broth for their Prime Rib Soup. The store varieties will all have different sodium levels. My homemade beef broth will have different sodium levels from those. They are all unique in flavor.
Taste your soup as you go along. Add salt and pepper as needed and per your taste. You can also add beef broth base to help with flavor and salt levels.
recipe variations
- Throw in any veggies you have or love. This is a wonderfully beefy soup and would be fantastic with many different veggie options.
- Pasta would be fantastic with this soup. Add a small-sized pasta along with the mushrooms. Once cooked to al dente, add the diced prime rib.
- Potatoes would also be a great add-in. Add them along with the mushrooms, cooking until tender and proceed with the recipe as written.
tips and tricks
- Store this Prime Rib Soup in the fridge in a air-tight container for up to 3 days. It can be frozen for up to 3 months.
- Reheat this soup slowly on the stove top to achieve the best result.
- Cut the onions, mushrooms, and prime rib into small, similar-sized pieces that can be easily enjoyed on a spoon.
prime rib soup frequently asked questions
It is! No worries about that dietary restriction here.
Yes! Freeze this soup recipe in air-tight containers for up to 3 months. When you’re ready, allow the soup to thaw in the fridge. To reheat, do so slowly on the stovetop.
No! The soup base is incredibly versatile. You can use whatever leftover protein you have on hand. Tender pieces of beef pot roast or leftover grilled ribeye would be fantastic. Even cooked ground beef would work. Toss in leftover rotisserie chicken from the week, or leave out the protein for a phenomenal mushroom soup!
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Prime Rib Soup
Equipment
Ingredients
- 1½ lbs leftover prime rib, cute into small bite-sized pieces
- 1 med onion, diced
- 5-6 cloves garlic, minced
- 1 tsp dried thyme leaves
- 16 oz cremini mushrooms, thinly sliced
- 8 cups beef broth
- 1 tbsp beef broth base
- 1 tbsp Worcestershire sauce
- 1 tbsp dijon mustard
- 1 cup sour cream
- kosher salt and fresh ground pepper, to taste
- fresh parsley and chives, for garnish
Instructions
- In a large dutch oven on medium heat, sauté diced onions in the butter until they become translucent. Add the garlic and dried thyme leaves, cooking just until they become fragrant.
- Add the beef broth to the dutch oven along with the beef broth base, Worcestershire sauce, and dijon mustard. Bring the broth mixture to a simmer. Taste for salt at this point, adding some along with fresh ground pepper if desired.
- Add the sliced mushrooms to the simmering broth and cook until the mushrooms are softened.
- In a separate mixing bowl, whisk the sour cream along with some of the beef broth. This will help loosen the sour cream so that it mixes easier into the soup.
- Pour the sour cream mixture into the soup, stirring until it's combined. Again, taste the broth. Make sure your salt level is good. If you need more, add more.
- Add in the prime rib pieces, cooking until they're just warmed through.
- Garnish with a dollop of sour cream, fresh herbs, and fresh cracked pepper. We always have to serve with a side of crusty bread for dunking. Enjoy!
Nutrition
Thank you!
I am so incredibly happy that you are here! I hope you try my Prime Rib Soup recipe and fall in love with it. If you make this recipe, please share and tag me on Instagram, Facebook, or TikTok! And, please leave a comment or star rating below. I absolutely love seeing each and every one of your kitchen masterpieces. It makes my heart so happy! And, as always, if you ever have any questions about any of my recipes, please don’t hesitate to contact me!
Happy Cooking!
–Rufus
Rufus for Real is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. I may earn a commission, with no additional cost to you, if you purchase through those links.
Rufus for Real is not a dietician or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories can vary quite a bit depending on which brands were used.
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