March 16

Instant Pot Mushroom Soup

I haven’t always liked mushrooms, but over the years I’ve gotten to like them. This recipe is pretty good. It’s packed with lots and lots and lots of mushrooms!

Instant Pot Mushroom Soup

Prep Time 15 mins
Cook Time 25 mins
NPR 5 mins
Total Time 40 mins
Course Sauce, Soup
Cuisine American
Servings 6 servings


  • 1 tablespoon olive oil
  • 1 tablespoon butter
  • 1 large brown onion diced
  • 1 teaspoon salt
  • 20-25 g dried porcini mushrooms
  • 1.5 lb / 700 g Desiree potatoes or other white potatoes, peeled and diced
  • 1.5 lb / 700 g Swiss brown mushrooms halved or left whole if they are small (you can reserve 5-6 mushrooms to slice and pan-fry to use as a garnish on top of the soup)
  • 1 celery stick sliced
  • 8-10 sprigs of fresh thyme dried is also ok
  • 2 bay leaves
  • 1 tablespoon soy sauce or Tamari wheat-free soy sauce
  • 3 large cloves of garlic roughly diced
  • 1 cube of vegetable stock
  • 1 cube of onion stock or 2 tablespoons onion soup mix
  • 1.25 Litres water
  • 1/2 teaspoon ground black pepper
  • To finish the soup
  • 1 clove of garlic diced
  • 1/3 cup double cream or thickened cream
  • Zest and juice of 1/2 lemon


  • Turn on the Instant Pot and press the Sauté function key. Add the olive oil, butter, onions, and salt and cook for 3-4 minutes, stirring a few times, until softened.
  • Add the rest of the ingredients (except for cream, extra garlic and lemon) and stir through. Press Keep Warm/Cancel.
  • Place the lid and lock. Press Manual, High Pressure, and set for 10 minutes. After three beeps the Instant Pot will begin to build up the pressure and start cooking. Once the cooking finishes, release the pressure naturally for 5 minutes before using quick release to let off the rest of the steam.
  • Remove the thyme sprigs from the soup and add in the extra chopped garlic. Stir through. Transfer the soup in 2-3 batches to a food processor or a blender. Cover with a lid and process into pureed soup texture (doesn’t have to be completely smooth and can have finely diced mushrooms still in). Pour the pureed soup to another saucepan or a large bowl while you process the rest of the soup. Then combine all of the pureed soup in a pot and stir in the lemon zest, lemon juice and cream.
  • Serve with a swirl of cream on top. If you like, pan-fry a few sliced mushrooms in butter and serve over the top. It’s lovely as is or with some crusty bread and butter


Original recipe:
Keyword Instant Pot
Tried this recipe?Let us know how it was!

Tags: , ,
Copyright 2022. All rights reserved.

Posted March 16, 2019 by Food.PWWF in category "Dinner", "Instant Pot", "Lunch", "Soup

Leave a Reply

Your email address will not be published.

Recipe Rating

This site uses Akismet to reduce spam. Learn how your comment data is processed.