

This Mushroom Gravy Recipe with Guinness is made with onion, crimini mushrooms, Dijon mustard, butter, flour, Guinness stout, milk, Worcestershire, and parsley.
Table of Contents
I started making this Mushroom Gravy Recipe with Guinness because I got a little tired of gravy that felt like an afterthought. You know the kind. Itโs there on the table because gravy is supposed to be there, but nobodyโs exactly writing home about it. It just sort of… exists. And honestly, that felt unfair. Gravy should have some presence. Some depth. Some oomph. The first time I made this mushroom Guinness gravy, it was on a cold evening when I wanted dinner to feel more comforting than the day had been. I had mushrooms, a yellow onion, a bottle of Guinness, and just enough stubbornness to think, โWell, surely this can become something better than basic gravy.โ Turns out, yes. Very much yes.
What I remember most is the smell. The mushrooms cooking down, the onion softening, that deep malty note from the Guinness hitting the hot pan. It was one of those small kitchen moments that feels bigger than it should, like your dinner just quietly announced it had standards. It reminded me of cozy pub-style meals, the kind you imagine eating on a rainy evening somewhere with dark wood tables and a coat still damp from the weather. Very cinematic. In reality, I was standing in my own kitchen in socks that didnโt match, but still. This Mushroom Gravy Recipe with Guinness made the whole meal feel richer, warmer, and honestly a bit more grown-up. Not in a fussy way. Just in a โyes, this is exactly what I wantedโ way.

Why youโll Love this Mushroom Gravy Recipe with Guinness?
There are a lot of reasons to love this Mushroom Gravy Recipe with Guinness, but the biggest one might be that it tastes like you worked harder than you actually did. Iโm always a fan of that kind of recipe. The mushrooms bring earthiness, the onion gives sweetness, and the Guinness adds this deep, roasted flavor that makes the whole gravy feel more layered and interesting without becoming heavy or bitter. Then the milk smooths everything out, so the final gravy is rich and velvety instead of too intense. Itโs cozy, but itโs got backbone. I know that sounds dramatic for gravy, but here we are.
I also think this Guinness mushroom gravy is one of those rare sauces that really has range. Itโs wonderful over mashed potatoes, obviously, but it also works over biscuits, pork chops, roast beef, or even with breakfast if youโre in the mood to make your morning a little more interesting. And maybe this is just me, but I donโt trust a gravy that only knows how to do one thing. This mushroom stout gravy has options. It feels a little more special than your everyday gravy, but not so special that youโd only make it for a holiday. Thatโs a sweet spot I really like. Itโs dependable, but not boring. Warm, but not sleepy. Bold, but still comforting.

Ingredient Notes
One of the nice things about this Mushroom Gravy Recipe with Guinness is that the ingredient list is short, but every single thing is doing important work. Nothing is just standing around looking decorative. I appreciate that. Itโs a practical recipe, but the flavors donโt feel plain at all. More like each ingredient shows up with a purpose and a little confidence.
- Yellow onion adds sweetness and depth to the gravy. As it cooks down with the mushrooms, it softens into the sauce and gives it that savory base that makes everything taste fuller. Itโs not flashy, but itโs absolutely essential.
- Crimini mushrooms are the soul of this mushroom gravy recipe. They have a deeper, more savory flavor than basic white mushrooms, and that really matters here. They make the gravy feel hearty and earthy in a way thatโs incredibly satisfying.
- Dijon mustard might seem like a tiny detail, but it adds just enough tang to wake everything up. It keeps the gravy from feeling too rich or flat, which I think is especially important in a stout gravy.
- Butter brings richness and helps create the base for the roux. It also makes the whole skillet smell like good things are happening, which Iโm never mad about.
- All-purpose flour is what thickens the sauce and gives it that classic gravy texture. It turns the onions and mushrooms and liquid into an actual gravy instead of a very tasty mushroom stew.
- Guinness stout is what gives this Mushroom Gravy Recipe with Guinness its signature flavor. It adds a deep roasted note and just a slight bitterness that balances the richness so nicely. I wouldnโt say it tastes โlike beer,โ exactly. More like it tastes fuller and darker and more interesting.
- Whole milk softens the edge of the stout and makes the final texture creamy and smooth. This is what keeps the gravy from tipping too far into bold and brings it back into cozy.
- Celery salt adds a subtle savory note that kind of sneaks in and makes everything taste more complete.
- Black pepper gives the gravy a little warmth. Not heat exactly, just enough bite to keep it lively.
- Worcestershire sauce deepens the savory flavor even more. Itโs that little final nudge that makes the gravy taste finished.
- Parsley is optional, but I do like it for a bit of color and freshness, especially if the rest of the plate is leaning very brown and very comforting.

How to Make Mushroom Gravy Recipe with Guinness?
Making this Mushroom Gravy Recipe with Guinness is actually pretty straightforward, which is one of the reasons I keep coming back to it. Itโs just a matter of building the flavor in the right order. Mushrooms and onions first. Then the buttery flour base. Then the Guinness, then the milk. Nothing wild. Nothing too precious. Just a good, deeply flavorful gravy that comes together in one skillet and makes you feel a bit more capable than you maybe did ten minutes ago.
Step 1. Cook the mushrooms and onions
Start by heating the mushrooms and onions in a dry cast iron skillet over medium-low heat for about 10 minutes. No oil, no butter yet. Just let them do their thing. The mushrooms release moisture, the onions soften, and the flavor gets a chance to deepen before you add anything else. Itโs one of those steps that can feel slightly underwhelming at first, but stick with it. This is where the gravy starts building real character. A little patience here pays off later.
Step 2. Add the mustard, butter, and flour
Once the mushrooms and onions are softened, add the Dijon mustard, butter, and flour. Stir it all together well and cook it over medium heat for about 5 minutes. This is your roux moment, just with mushrooms already in the mix. The flour cooks in the butter, the mustard adds a little brightness, and everything starts looking thick and a touch messy. Thatโs fine. Good, even. If it looks a bit clumpy at this stage, donโt worry. It usually smooths out once the liquid goes in.
Step 3. Add the Guinness in two rounds
Lower the heat to medium-low and add half the Guinness. Whisk until itโs fully incorporated. Then add the rest and whisk again. I really think doing this in two parts helps keep the gravy smoother. It gives the flour mixture a chance to loosen slowly instead of throwing a little tantrum. The color deepens almost immediately, and this is usually the moment where I think, okay yes, this is why weโre doing this.
Step 4. Add the milk and simmer
Pour in the milk and whisk again until everything is smooth. Then let the gravy simmer for 5 to 10 minutes, depending on how thick you like it. If you want a looser gravy for biscuits, stop on the earlier side. If you want something richer and thicker for mashed potatoes, let it go a bit longer. I like it thick enough to coat a spoon but still pourable. Anything thicker starts to feel like itโs trying too hard.
Step 5. Finish with seasoning
Remove the gravy from the heat and stir in the celery salt, black pepper, and Worcestershire sauce. Then taste it. Always taste it. This is where you can decide if it needs another pinch of salt or a little more pepper. Gravy is forgiving like that. It gives you room to adjust.
Step 6. Serve warm
Spoon the Mushroom Gravy Recipe with Guinness over whatever youโre serving and, if you like, finish with a little parsley. Then try not to immediately start inventing new reasons to make mashed potatoes. Or do. I understand.
Storage Options
This Mushroom Gravy Recipe with Guinness stores well, which is helpful because itโs the kind of gravy you may want to make ahead or save for later. Let it cool completely, then store it in an airtight container in the refrigerator for up to 3 to 4 days. It will thicken as it chills, which is completely normal. Cold gravy tends to look a bit dramatic and overly committed, but donโt let that throw you off.
To reheat it, warm it gently on the stovetop and add a splash of milk or stock to loosen it back up. Whisk as it warms and it should come back together nicely. The microwave works too, especially if life is busy and dinner needs to move, but I think the stovetop gives a smoother result. You can also freeze this mushroom stout gravy if needed, though after thawing it may need a good whisk and a little patience. Not a crisis. Just a small gravy reset.
Variations & Substitutions
One thing I like about this Mushroom Gravy Recipe with Guinness is that it has enough personality to stand out, but itโs still flexible enough to work with what you have. I always appreciate that. Real life is messy. Sometimes the store is out of crimini mushrooms. Sometimes the Guinness disappears because someone else had other plans for it. The gravy survives.
- Use white mushrooms instead of crimini if thatโs what youโve got. The flavor will be a little milder, but the gravy will still be very good.
- Swap Guinness for another stout or dark beer if needed. Iโd still stick with something smooth and malty rather than super hoppy.
- Use a splash of stock instead of some of the milk if you want the gravy a little less creamy and a little more savory.
- Add garlic with the onions and mushrooms if you want another layer of savory flavor. I usually support garlic in most situations.
- Add fresh thyme if you want a little extra earthy depth.
- Adjust the thickness depending on how youโre serving it. Thicker for potatoes, looser for biscuits or meat. Thereโs no one correct answer there.
- Skip the parsley if you donโt have it. Itโs nice, but not essential.

What to Serve With Mushroom Gravy Recipe with Guinness?
This Mushroom Gravy Recipe with Guinness is the kind of sauce that can make a whole meal feel cozier and a little more complete. It doesnโt just sit there. It participates. It improves things. Thatโs a quality I value in gravy.
- Mashed potatoes are probably the classic move, and honestly, they deserve it. This gravy over mashed potatoes is rich, earthy, and very comforting.
- Biscuits are another favorite of mine. Spoon the gravy over warm biscuits and suddenly breakfast or brunch feels much more serious.
- Roast beef works beautifully here because the deep savory flavor of the gravy complements the meat so well.
- Pork chops or pork tenderloin are excellent with this mushroom Guinness gravy too. The sauce adds richness without completely taking over.
- Meatloaf is another great pairing if youโre leaning fully into comfort food.
- Toasted bread or Yorkshire pudding also works, especially if youโre looking for something to catch every last bit of gravy.
And maybe this is just me, but once I make this gravy, I start mentally scanning the kitchen for more โacceptable gravy surfaces.โ That feels like a strong recommendation.
FAQ
Does Mushroom Gravy Recipe with Guinness taste strongly like beer?
Not really. The Guinness adds depth and a roasted, malty flavor more than a strong beer taste. It gives the gravy richness rather than making it taste like you poured a drink into dinner.
Can I make it without mushrooms?
You can, but then it wonโt really be mushroom gravy anymore. Itโll still be a stout gravy, which could be good, but the mushrooms are a huge part of what makes this recipe what it is.
What if my gravy gets too thick?
Just whisk in a little extra milk or stock until it reaches the consistency you want. Itโs easy to adjust.
Can I make this without Guinness?
Yes. Another stout or dark beer will work. Guinness is just especially smooth and dependable here, which is why I like it so much.

If youโre looking for a gravy that feels richer, deeper, and a little more memorable than the usual version, this Mushroom Gravy Recipe with Guinness is such a good one to try. Itโs easy enough for a weeknight, cozy enough for a Sunday dinner, and flavorful enough to make the rest of the plate feel more exciting. I love recipes like that. The ones that quietly level everything up.
So if you make this Mushroom Gravy Recipe with Guinness, I hope you pour it generously, probably over mashed potatoes first because that just feels right, and enjoy the way it changes the whole meal. Iโd really love to know โ would you go for biscuits, potatoes, or straight over a good piece of meat?

Mushroom Gravy Recipe with Guinness
Ingredients
- 1 yellow onion diced
- 8 oz crimini mushrooms sliced
- 1 tsp Dijon mustard
- 2 tbsp butter
- 2 to 3 tbsp all-purpose flour
- 1 11 oz bottle Guinness stout
- 8 oz whole milk
- 1/8 tsp celery salt
- 1/8 tsp black pepper
- 1 tsp Worcestershire sauce
- 1/4 c chopped parsley for garnish (optional)
Instructions
Cook the vegetables.
- In a cast iron skillet set over medium-low heat, add the diced onion and sliced mushrooms. Cook for approximately 10 minutes, stirring occasionally, until the vegetables have softened and released their moisture.
Add the mustard, butter, and flour.
- Stir in the Dijon mustard and butter. Once the butter has melted, add the flour and stir thoroughly until the vegetables are evenly coated. Continue cooking over medium heat for approximately 5 minutes to allow the flour to cook fully.
Incorporate the Guinness.
- Reduce the heat to medium-low. Pour in half of the Guinness stout and whisk until the mixture is smooth and fully combined. Add the remaining Guinness and whisk again until fully incorporated.
Add the milk and simmer.
- Pour in the whole milk and whisk until smooth. Allow the gravy to simmer for 5 to 10 minutes, stirring occasionally, until it has thickened to the desired consistency.
Finish the gravy.
- Remove the skillet from the heat. Stir in the celery salt, black pepper, and Worcestershire sauce until fully combined.
Serve.
- Serve the gravy warm over mashed potatoes, alongside biscuits, or with beef or pork. Garnish with chopped parsley if desired.
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