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    Home » Blog » Sauces, Dressings, and Condiments

    Published: December 4, 2021·Last Modified: February 17, 2022 · Leave a comment · This post may contain affiliate links · This blog generates income via ads

    Keto Mushroom Sauce Recipe

    Jump to Recipe Print Recipe
    keto mushroom sauce

    This creamy low carb mushroom sauce is luscious, yes simple to prepare. Smother it on top of a steak, some pork chops or chicken or pair it with eggs, potatoes, green beans or anything else you enjoy mushrooms with. You're going to fall in love with this decadent keto mushroom gravy!

    creamy keto mushroom sauce in an enameled cast iron skillet

    When it comes to mushrooms... can you really go wrong? In our opinion no, they are just such splendid low carb vegetables with an incredible earthy, umami flavor that elevates everything around it. This sauce is buttery and creamy, with plenty of garlic, onions, fresh thyme and two different types of mushrooms.

    You're going to be AMAZED at how easily this sauce comes together. Have a date coming up with a special someone? Sear off a nice ribeye, then smother it in this sauce. We can guarantee your date will be impressed.

    plate with a beautifully seared ribeye topped with keto mushroom sauce

    Looking for more mushroom recipes? Be sure to check out this cauliflower and mushroom side, this chicken bacon mushroom pasta with spinach, this keto Salisbury steak, or keto green bean casserole.

    Jump to:
    • ❤️Why we love this recipe
    • 🧄Ingredients
    • ✏️Ingredient notes
    • 📖Instructions
    • ✨Tips & tricks
    • 💭Frequently asked questions
    • 💫More sides to try
    • 🥣Storage and reheating
    • 🛒Shop this recipe
    • 🌟Leave a review!
    • 📖 Recipe
    • 💬 Community

    ❤️Why we love this recipe

    • Hearty & satisfying - Rich, flavorful, and full of hearty creamy, umami flavors. It will take any regular meal to the next level! It's the perfect way to easily level up your date night meal.
    • Keto & gluten free - Naturally keto friendly and gluten free! It's only 5 net carbs per serving.
    • Foolproof & versatile - It's pretty hard to mess this sauce up, and it can be served with a variety of delicious main courses, like this air fryer ribeye steak, or a chicken dinner.
    • Simple ingredients - All of these ingredients can be found at any grocery store, and you likely have a lot of them in the fridge and pantry already.

    🧄Ingredients

    Here are the ingredients needed to make this mushroom gravy.

    keto mushroom sauce ingredients graphic with text to denote different ingredients

    ✏️Ingredient notes

    You can find the full quantities and nutrition information in the recipe card.

    • Butter - For luscious taste and texture. Feel free to use olive oil if you prefer.
    • Onion & garlic - Can be substituted for onion and garlic powder if you want.
    • Salt & pepper - To taste, but please know we use Diamond kosher salt in our recipes unless otherwise noted. Other types of salt can be saltier, so taste as you go.
    • Mushrooms- Sliced. We'd recommend portobello or shiitake & we used a mixture of the two!
    • Beef broth - For a classic flavor. Can be substituted for chicken, vegetable, mushroom broth or white wine.
    • Heavy cream - To make this sauce incredibly creamy and luscious!
    • Dijon mustard & Worcestershire sauce - To really create a deep, well rounded flavor.
    • Fresh thyme - Really adds such a delicious flavor. Dried can be used instead.

    📖Instructions

    Cook the aromatics

    Heat a large skillet, pot or dutch oven over medium heat. Melt 2 tablespoons of butter, and add in onions with a pinch of salt. Cook until soft and translucent, about 5-7 minutes. Add in garlic and thyme and cook until garlic is fragrant, about 30 seconds.

    browned onions and garlic with herbs in an enameled dutch oven

    Cook the mushrooms

    Add in remaining 2 tablespoons of butter and melt, followed by the mushrooms. Season mushrooms with more salt and pepper and cook until softened, about 5 minutes.

    • fresh mushrooms in an enameled skillet
    • cooked mushrooms in an enamel skillet with onions and garlic

    Add the liquids

    After mushrooms are softened, stir in beef broth and heavy cream.

    • mushrooms in a skillet and a hand pouring in beef broth
    • hand pouring in heavy cream into an enameled cast iron with mushroom sauce

    Finish it up

    Stir in dijon mustard and Worcestershire sauce. Taste and adjust seasonings to suit your personal preference. Simmer gently to allow the sauce to thicken slightly and the flavors to meld, about 3-5 minutes.

    • heavy whipping cream with mushrooms, dijon mustard and worcestershire sauce
    • thickened keto mushroom sauce in an enameled cast iron

    Serve & enjoy!

    Serve and enjoy! You can't go wrong here. Our preference? Drizzling it all over a juicy steak!

    keto mushroom sauce on a steak with fresh thyme

    ✨Tips & tricks

    • Don't heat the cream too high, or the sauce with curdle or separate. This goes for reheating as well. Reheat gently at low to medium heat on the stovetop, or at lower power in the microwave.
    • Reheat in the air fryer at 350°F for up to 4 minutes, being careful not to burn the garlic and herbs.

    💭Frequently asked questions

    Can I make this mushroom sauce dairy free or vegan?


    Yes, you can make this mushrooms sauce dairy free, although we haven't tested it ourselves.

    For dairy free only, replace the butter with your favorite dairy free butter or olive oil. You will also need to substitute the heavy cream. Our recommendation would be coconut cream.

    For vegan, replace all dairy items as listed above, replaces Worcestershire sauce with Tamari, soy sauce or coconut aminos, and use vegetable or mushroom broth in place of beef broth.

    very close up image of keto mushroom sauce

    💫More sides to try

    • Crispy air fryer smashed potatoes with garlic and herbs
    • Redskin mashed potatoes
    • Roasted green beans with garlic and lemon
    hand held spoonful of keto mushroom gravy over top of a medium rare steak
    Can I use dried or canned mushrooms for this sauce?


    Fresh mushrooms (portobello varieties and shiitake) are best for this sauce. Canned mushrooms simply lack flavor, but they can be used if needed.

    If using dry mushrooms, make sure to take plenty of time to rehydrate them prior to adding them to the sauce.

    close up shot of a bowl full of mushrooms

    🥣Storage and reheating

    Store in an airtight container in the fridge for up to 5 days. Reheat gently on the stovetop or microwave, being careful to not let the sauce boil, or else the cream will curdle.

    close up shot of a luxurious bite of medium rare steak slathered in keto mushroom sauce

    🛒Shop this recipe

    Want to get supplies for this recipe or shop our keto kitchen or pantry? We've linked our favorites above and right here in our Amazon Store!  

    A Full Living is a participant in the Amazon Services LLC Associate program, an affiliate advertising program designed to promote a means for sites to earn advertising fees by linking products to amazon.com. We only share products we use and love. It doesn't cost you anything extra to shop using our links, but we earn a small commission that helps us keep this site going! 

    enameled skillet with keto mushroom sauce surrounded by thyme and other seasonings

    🌟Leave a review!

    Make sure to leave a 5-star review below! This helps other readers find our recipes via Google, and encourages them to try them. Also be sure to leave a comment with your experience!

    Take a photo and share with us by tagging us on Instagram or follow along on Pinterest for more ideas!

    📖 Recipe

    keto mushroom sauce

    Keto Mushroom Sauce

    This creamy low carb mushroom sauce is luscious, yes simple to prepare. Smother it on top of a steak, some pork chops or chicken or pair it with eggs, potatoes, green beans or anything else you enjoy mushrooms with. You’re going to fall in love with this decadent keto mushroom gravy!
    5 from 4 votes
    Print Pin Rate
    Prep Time: 10 minutes
    Cook Time: 25 minutes
    Total Time: 35 minutes
    Servings: 6 servings
    Author: Briana

    Ingredients

    • 4 tablespoons unsalted butter, divided
    • ½ medium yellow onion, diced (about 100 grams)
    • 4 cloves garlic, minced
    • 16 ounces sliced mushrooms (we used a mixture of portobello and shiitake)
    • 2 teaspoons thyme leaves (optional)
    • 1 teaspoon kosher salt
    • ½ teaspoon black pepper
    • 4 ounces beef broth
    • 4 ounces heavy whipping cream
    • 1 tablespoon dijon mustard
    • 1 tablespoon Worcestershire sauce

    Instructions

    • Heat large skillet over medium heat. Add 2 tablespoons of butter to melt. Add onions and a pinch of salt and cook until softened, about 5-7 minutes.
    • Once onions are translucent, add thyme leaves and garlic, and cook until garlic is fragrant, about 30 seconds. Add in remaining 2 tablespoons of butter and melt, followed by the mushrooms. Season mushrooms with more salt and pepper and cook until softened, about 5 minutes.
    • After mushrooms are softened, stir in beef broth, heavy cream, dijon mustard and Worcestershire sauce. Taste and adjust seasonings to suit your personal preference. Simmer gently to allow the sauce to thicken slightly and the flavors to meld, about 3-5 minutes.
    • Serve and enjoy! We love to drizzle it all over a juicy steak, but this sauce is great with virtually any protein you can think of.
    • Keeps covered in an airtight container in the fridge for up to 4 days. Reheat gently and slowly, or the sauce will begin to separate or curdle.

    Notes

    • Garlic and onion can be substituted for garlic and onion powder if preferred.
    • If dairy free, replace heavy cream and butter with vegan butter and full-fat coconut milk. 
    • If vegan, follow dairy free instructions and replace beef broth with a vegetable broth. Omit worcestershire sauce or replace with soy sauce or tamari. 

    Nutrition

    Calories: 162kcal | Carbohydrates: 6g | Protein: 3g | Fat: 15g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 46mg | Sodium: 528mg | Potassium: 419mg | Fiber: 1g | Sugar: 2g | Vitamin A: 548IU | Vitamin C: 3mg | Calcium: 43mg | Iron: 1mg

    These nutrition facts are provided as a courtesy and are only estimates. We cannot guarantee the accuracy.

    Did you love it?If you made this recipe, make sure to show us on Instagram at @AFullLiving or tag #AFullLiving! We love to see what you guys are making!
    Course: Condiment, Sides
    Cuisine: American
    Keyword: creamy, gluten free, keto, mushrooms
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    Reader Interactions

    Comments

    1. Hans says

      December 07, 2021 at 12:15 pm

      Absolutely delicious and easy to make. I followed the recipe as is, though I substituted white wine for the broth and balsamic for the mustard as I didn't have either of the original two ingredients on hand. I love the recipes that Briana and Chamere post on their website and social channels. They make it easy for others to follow and get inspired in the kitchen. These guides are packed with helpful info and tips as well. Thanks, guys!

      Reply
      • Briana says

        December 07, 2021 at 12:58 pm

        Absolutely wonderful to hear Hans! Great idea using balsamic as well, brilliant actually! Thank you so much for your kind words and for giving it a try. We're so glad you loved it!

        Reply

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