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Creamy Keto Mushroom Sauce

Searching for a yummy Keto Mushroom Sauce? Look no further! In 20 minutes you will have a deliciously creamy sauce to top that steak, chicken or smother your roasted veggies with!

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Cast iron skillet filled with keto mushroom sauce.

I am SUCH a huge mushroom sauce fan, however, I can’t stand mushrooms all by themselves! I know, weird right? For me, it all comes down to textures. Mushrooms have an excellent flavour, especially when simmered with onions and garlicky goodness. But all by themselves? Yeah, not such a big fan.

This recipe was created to enjoy the beautiful flavour that mushrooms have to offer, without all of that rubbery texture. To accomplish this task, we cook down our mushrooms until they are golden, simmer with beef broth, and then puree the sauce smooth with an immersion blender.

If a chunky mushroom sauce is your jam, go ahead and skip the puree step. Either way, I hope you love this Keto Mushroom Sauce as much as my family and I do!

Why it works

  1. It’s delicious! Mushrooms pair perfectly with onions and garlic, bringing an irresistible aroma with that excellent flavour.
  2. Fast and easy! This saucy goodness is very simple to make, and is ready in 20 minutes from start to finish!
  3. Make it creamy or leave it chunky – totally up to you!
  4. This saucy goodness is made totally low carb, gluten free and keto friendly!
Sliced pork tenderloin next to fried green beans and covered in keto mushroom sauce.
Pork tenderloin with green beans and Creamy Keto Mushroom Sauce made in a saucepan.

Keto Mushroom Sauce Ingredients

  • white mushrooms
  • onion
  • garlic
  • butter
  • sea salt
  • ground black pepper
  • beef broth
  • sour cream
  • heavy whipping cream

Creamy Keto Mushroom Sauce Recipe

This Creamy Keto Mushroom Sauce is super easy to make! Here’s how to do it:

Heat a saucepan on medium high heat and add some butter. Wash the mushrooms and trim the ends from the stem.

Cutting board with mushrooms, onion and garlic.

Slice up the mushrooms, dice the onion and mince the garlic. Once the butter is melted and hot, fry onions, garlic and mushrooms until the mushrooms are soft and golden brown, about 8-10 minutes.

Skillet full of browned mushrooms.

Reduce the heat to low, add beef broth and simmer for 5 minutes.

Carefully puree the goods with an immersion blender until the sauce is thick and creamy. Mix in the heavy cream and sour cream, and heat until sauce is thoroughly heated. Serve hot!

Watch the whole thing go down:

Expert Tips

  1. Ensure the mushrooms are throughly cleaned! They can pack around a lot of dirt – which we do not want in our mushroom sauce!
  2. Make sure the mushrooms are cooked until they have browned and turned soft – this is for texture and flavour purposes.
  3. Prefer a chunky sauce? Don’t puree your sauce at all!
  4. Want a creamy sauce but don’t have an immersion blender? Cool the sauce, blend using a blender, then return your sauce to the saucepan / skillet and heat to 165° before serving.
  5. Alternately you can use a skillet instead of a saucepan, however, if you would like to puree this sauce with an immersion blender, rather than using a blender or leaving it chunky, it is easier done so in a saucepan.
Cast iron skillet full of keto mushroom sauce.
Keto Mushroom Sauce made in a cast iron skillet

What goes with Keto Mushroom Sauce?

There are so many excellent meals you can make with this Keto Mushroom Sauce. Here are a few ideas:

Pork – This is the most incredible recipe for the Juiciest Pork Tenderloin, or try this Keto Mushroom Sauce with pork chops or country style boneless pork ribs.

Steak – Steak and mushrooms go together like two peas in a pod. Cook your steak to your liking, then smother with this delicious sauce!

Chicken – Seared chicken breast or thighs (cooked until the internal temperature reaches 165°), served with veggies like steamed green beans or Roasted Vegetables, then topped with Keto Mushroom Sauce.

Seared chicken breast with roasted vegetables and covered in keto mushroom sauce.
Chicken with roasted vegetables and Creamy Keto Mushroom Sauce made in a saucepan.

Here are some other recipe you might like:

Keto Butter Chicken

Crispy Low Carb Chicken Nuggets

3 Ingredient Keto Honey Mustard

Chicken Alfredo

Keto Teriyaki Chicken

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Cast iron skillet filled with keto mushroom sauce.

Creamy Keto Mushroom Sauce

Searching for a yummy Keto Mushroom Sauce? Look no further! In 20 minutes you will have a deliciously creamy sauce to top that steak, chicken or smother your roasted veggies with!
5 from 7 votes
Print Pin Rate
Prep Time: 5 minutes
Cook Time: 15 minutes
Total Time: 20 minutes
Servings: 6 servings
Author: Aleta

Ingredients

  • 10 white mushrooms
  • 2 tbsp unsalted butter
  • ½ small onion
  • 3 cloves garlic
  • ¼ tsp sea salt
  • ¼ tsp ground black pepper
  • 1 cup beef broth
  • ½ cup full fat sour cream
  • ½ cup heavy whipping cream

Instructions

Equipment Needed

Directions

  • Heat a saucepan on medium high heat and add some butter. Wash the mushrooms, trim the ends from the stem, then slice them up. Dice the onion and mince the garlic.
  • Once the butter is melted and hot, fry onions, garlic and mushrooms until the mushrooms are soft and golden brown, about 8-10 minutes. Reduce the heat to low, add beef broth and simmer for 5 minutes.
  • Carefully puree the goods with an immersion blender until the sauce is thick and creamy. Mix in the heavy cream and sour cream, and heat until sauce is thoroughly heated. Serve hot!

Notes

Expert Tips

  1. Ensure the mushrooms are throughly cleaned! They can pack around a lot of dirt – which we do not want in our mushroom sauce!
  2. Make sure the mushrooms are cooked until they have browned and turned soft – this is for texture and flavour purposes.
  3. Prefer a chunky sauce? Don’t puree your sauce at all!
  4. Want a creamy sauce but don’t have an immersion blender? Cool the sauce, puree using a blender, then return your sauce to the saucepan / skillet and heat to 165° before serving.
  5. Alternately you can use a skillet instead of a saucepan, however, if you would like to puree this sauce with an immersion blender, rather than puree it using a blender, or leaving it chunky, it is easier done so in a saucepan.

 

Nutrition Facts

Nutrition facts are an estimate only! The ingredients you choose could have different nutritional values than the ingredients I have used.
Deduct fibre from the total carbs to get 3 g net carbs per serving of 1/4 cup.
 

Nutrition

Serving: 0.25cup | Calories: 146kcal | Carbohydrates: 3.5g | Protein: 1.8g | Fat: 14.3g | Sodium: 202mg | Fiber: 0.5g

20 Comments

  1. This looks uber creamy and flavorful. I love mushroom sauces, especially over poltenta!

  2. 5 stars
    This Mushroom Sauce looks so good! I love how easy it is to make and that it’s GF and Keto-friendly! I so have to try this!

  3. Mama Maggie's Kitchen

    5 stars
    Hmm yum! This Creamy Keto Mushroom Sauce looks soo yummy! I also a huge fan of Mushrooms. And this recipe is just perfect.

  4. 5 stars
    I’m also a huge mushroom sauce fan, and it’s one of my favourite! It’s creamy, full of that earthy flavour and I love their texture too. It can go so well with so many different dishes! Can’t wait to give this recipe a go, it looks delicious!

  5. I have never tried mushroom sauce before. This looks so creamy and flavorful!

  6. 5 stars
    I love me a creamy mushroom sauce over a nice juicy steak! It’s so earthy and flavorful! This recipe looks great!!!

  7. 5 stars
    OMG this sounds so good! This over country biscuits would be perfect for brunch! I can’t wait to try it!

  8. 5 stars
    We definitely like different sauces in our house, so I can’t believe I’ve never tried a mushroom sauce. I can’t wait to try this one with some chicken or pork chops!

  9. 5 stars
    YUM! This sauce is perfect on top of grilled pork, chicken, or even sauteed vegetables! So easy and so full of flavor!

  10. My husband just started keto last week and I know he would appreciate this. Thanks for sharing.

  11. We loooove a good mushroom sauce! It’ll go perfectly with that steak I’m making for dinner!

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