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Instant Pot Mushrooms with Garlic Butter Sauce

Instant Pot Mushrooms with Garlic Butter Sauce

Scrumptious garlic mushrooms drowning in herbs and a silky garlic butter sauce. Hearty enough to serve as a main course for vegetarians or side dish to a juicy steak.

Two of my favorite things, garlic and butter, combine to make one of the ONLY mushroom dish I’ll eat: Instant Pot Mushrooms with Garlic Butter Sauce. 

Instant Pot Mushrooms

Truth be told I wasn’t sure how these garlic mushrooms would turn out using an Instant Pot (this is the version I own). I did a ton of research and couldn’t find much in terms of how long it takes to cook mushrooms in the Instant Pot. I knew there would be quite a bit of trial and error. To start, I decided to keep the instant pot recipe as close to my stovetop version as possible (Roasted Mushrooms). Guess what….I hit the nail on the head the first run. There were minimal adaptions needed to make it a success in an Instant Pot. Instant Pot mushrooms…who knew?

garlic mushroomsWhile you’re out grilling steaks this summer these Garlic Butter Mushroom can be cooking with limited supervision. Instead enjoy the time soaking up the sun rays and playing corn hole.

Don’t forget to grab some crusty french bread to soak up the delicious garlic butter. Or else you’ll find yourself licking the bowl clean. Let’s just say personal experience is how I know this.

Mushrooms in garlic butter sauce is also a perfect topper to mashed potatoes. Add in some sautéed spinach and you have yourself a meatless meal.

Great side meal to Prime Rib Recipe, Smoked Prime Rib, Sous Vide Prime Rib or Smoked Beef Tenderloin. I’d even treat them as a Thanksgiving Recipes and serve along Smoked Turkey or Smoked Turkey Wings.


How To Make Mushrooms in The Instant Pot

* Feel free to use small button mushrooms, or brown mushrooms or white mushrooms. I’ve used them all and they all turn out perfectly.

* Do not soak or rinse your mushrooms to clean. Use a damp paper towel to remove dirt from the mushrooms. Mushrooms act like a sponge and will become water logged – this water will release when cooked watering down the sauce.

* As Julia Child once said, “don’t crowd the mushrooms”. I’ve doubled the batch but the quality suffered drastically. The mushrooms are too crowded and “steam” cook. Too much liquid is released and the butter/garlic sauce is watered down.

* Cooking time is between 12-15 minutes. If you like a firmer bite to your garlic butter mushrooms, set the cooking time to 12 minutes. If you prefer super soft mushrooms, set it to 15 minutes.

* Don’t skimp on the butter. Yeah I said it. I actually add an extra tablespoon to the pan when it’s done cooking just to get more buttery garlicky goodness.

* These mushrooms are super rich and hearty. You can turn it into a vegetarian meal by serving it over polenta or bread. They pair nicely with a big fatty steak also. The choices are endless.

* Garlic – I’m of the thought process there is no such thing as too much garlic (I mean check out our Garlic Mashed Potatoes). I’ve been known to add a bit more uncooked minced garlic to the butter sauce in my bowl. If you’re not a garlic-holic, the amount listed in the recipe is perfect.


Other mushroom recipes

Mushroom Sauce
Marinated Mushrooms
Instant Pot Mushrooms
Air Fryer Mushrooms
Garlic Butter Mushrooms
Sautéed Mushrooms
Beef Wellington Recipe
Steak and Ale Pie
Instant Pot Beef Strogranoff

Sinful Garlic Mushrooms dripping in buttery garlic sauce and herbs. Pair it with steak or potatoes. This Instant Pot recipe is ready in just 15 mintues! #instantpotrecipes #mushroomrecipes #sidedish #vegetarianrecipes


Roasted Mushrooms in Garlic Butter Sauce

Garlic and Butter Mushrooms

Scrumptious mushrooms drowning in butter, garlic and herbs. Hearty enough to serve as a main course for vegetarians or side dish to a juicy steak.
3.73 from 103 votes
Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes
Course: Side Dish
Cuisine: American
Keyword: Mushroom recipes
Servings: 2
Calories: 279kcal
Author: Darcey Olson


  • 2 tbsp olive oil
  • 1 lb Small Button Mushrooms
  • 2 tbsp Butter (+ more to taste)
  • 2 tsp Minced Garlic (+ more to taste)
  • ½ tsp Fresh Thyme (or 1/8 tsp. Dry Thyme)
  • Fresh Parsley
  • Salt (to taste)


  • Turn the Instant Pot on to sauté. Once hot add the olive oil.
  • Add the mushrooms, cap side down and cook for about 5 minutes. Do not move the mushrooms until they have caramelized on the bottom.
  • Add the butter, garlic, thyme and a pinch of salt and toss to coat.
  • Place the top on the Instant Pot and set to cook at "High Pressure" for 12-15 minutes.
  • Let NR for 5 minutes before quick releasing.
  • OPTIONAL- add in another tsp of garlic and butter after cooking to amp up the flavors.
  • Transfer to a serving platter and spoon the butter and garlic sauce over the mushrooms.
  • Season with salt and parsley.
  • Enjoy immediately.


Calories: 279kcal | Carbohydrates: 9g | Protein: 7g | Fat: 26g | Saturated Fat: 9g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 13g | Trans Fat: 0.5g | Cholesterol: 30mg | Sodium: 102mg | Potassium: 740mg | Fiber: 2g | Sugar: 5g | Vitamin A: 374IU | Vitamin C: 6mg | Calcium: 18mg | Iron: 1mg
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Recipe Rating


Thursday 18th of March 2021

My husband and I LOVED these! We ate all of them in one sitting (as a side of course). We will be making these again soon! Thank you.


Friday 25th of December 2020

I just tried this recipe to go along with our Prime Rib Christmas Dinner and it turned out perfectly! I put them along side of the mashed potatoes and took your advice of having freshly baked baguette to dip in the sauce! So Yummy! I will be making this again! I have a Ninji Foodi.

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