Instant Pot Mushrooms with Garlic Butter Sauce

Scrumptious Instant Pot 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.

This recipe for mushrooms in the instant pot is a riff off my popular stovetop garlic butter mushrooms.

Instant Pot Mushrooms Ingredients

Here are the main ingredients required to make Instant Pot Mushrooms. For the full list of ingredients see the recipe card below:

  • Small Button Mushrooms – or sub in your favorite
  • Butter – go crazy
  • Garlic – you can never add too much
  • Fresh Thyme – you can sub in dried thyme

How To Make

Here’s a quick overview of how to make Instant Pot Mushrooms. For the full list of instructions, see the recipe card below:

Saute the Mushrooms – cook the mushrooms in olive oil to caramelize.

Make the Garlic Butter – add the butter, garlic, thyme and a pinch of salt and toss to coat.

Cook the Mushrooms – cook on high pressure for 12-15 minutes. Let NPR for 5 minutes.

Serve – Enjoy immediately for the best texture.

Instant Pot Mushrooms in Garlic Butter Sauce

Recipe Tips

Feel free to use small button mushrooms, 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.

Serving Ideas

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. They also pair well with grits and polenta.

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

More Mushroom Recipes

Instant Pot Mushrooms
Garlic Butter Mushrooms
Sautéed Mushrooms
Steak and Ale Pie
Instant Pot Beef Strogranoff

Instant Pot 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.
3.75 from 104 votes
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Prep Time: 5 minutes
Cook Time: 20 minutes
Total Time: 25 minutes
Servings: 2
Calories: 279kcal
Author: Darcey Olson

Ingredients

  • 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))

Instructions

  • 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.

Nutrition

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
Tried this recipe?Mention @foodieandwine or tag #foodieandwine!

Join the Conversation

  1. 5 stars
    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.

  2. 5 stars
    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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