Mushroom Barley Soup

Featured in: Everyday Home Cooking

This comforting deli-style soup combines the earthy depth of dried shiitake mushrooms with meaty fresh white mushrooms and tender pearl barley. The result is a robust, satisfying bowl that thickens beautifully as it simmers. Perfect for cold weather, this make-ahead soup actually improves overnight and pairs wonderfully with crusty rye bread.

Updated on Wed, 28 Jan 2026 10:08:00 GMT
Homemade Mushroom Barley Soup simmering in a Dutch oven, featuring rich broth with tender shiitake, white mushrooms, and chewy pearl barley. Perfect for a cozy vegetarian meal. Save
Homemade Mushroom Barley Soup simmering in a Dutch oven, featuring rich broth with tender shiitake, white mushrooms, and chewy pearl barley. Perfect for a cozy vegetarian meal. | joliekitchen.com

I used to avoid barley because I thought it was just filler for cheap stews. That changed on a freezing Tuesday when a friend brought over a thermos of this mushroom barley soup. The earthy aroma of the dried shiitakes filled my kitchen and felt like a warm hug. It was the kind of meal that made the drafty windows in my old apartment feel like a cozy feature rather than a flaw. I realized then that a simple grain could carry so much depth.

Making this soup always reminds me of my first tiny kitchen where the steam would fog up my glasses every time I lifted the lid. I remember trying to chop the carrots while listening to a neighbor play the cello through the thin walls. There is something rhythmic about the bubbling pot that matches a slow afternoon perfectly. It is the recipe I turn to when I need the world to slow down for an hour.

Ingredients

  • Dried shiitake mushrooms: These little powerhouses provide a concentrated savory flavor that fresh mushrooms alone cannot match.
  • Fresh white mushrooms: Slicing these thinly allows them to brown quickly and release their moisture into the base.
  • Pearl barley: This grain is surprisingly resilient and creates a thick velvety texture without needing any cream.
  • Vegetable broth: Choosing a low sodium version allows you to control the seasoning and let the mushroom flavor shine.
  • Aromatic vegetables: Dicing the onion, carrots, and celery into uniform pieces ensures they cook evenly and melt into the broth.

Instructions

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Prep the dried mushrooms:
Pour boiling water over the shiitakes and watch them slowly soften and darken the water into a rich tea. Strain the liquid through a sieve to keep the base perfectly smooth.
Sauté the base:
Toss the onions, carrots, and celery into the hot oil and listen for that satisfying sizzle as they begin to sweat. Cook them until they are soft and the onions look translucent.
Incorporate the mushrooms:
Add both types of mushrooms and stir until they look glossy and smell wonderfully earthy. This step builds the foundation of that deep deli style flavor.
Simmer the soup:
Pour in the broth and the reserved mushroom liquid while watching the barley settle at the bottom of the pot. Bring it to a boil then let it drop to a lazy bubble.
Check the texture:
Let everything cook gently until the barley is tender enough to pop slightly when you bite it. Remove the bay leaves before you get ready to serve.
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Last winter I served this to my family after we spent the whole morning shoveling snow off the driveway. We all sat around the table in our thick wool socks too tired to talk but completely content.

Finding the Right Balance

I found that the secret to the best texture is not to rush the simmering process. If the heat is too high the liquid disappears before the barley can fully soften. A gentle bubble is your best friend here.

The Magic of Mushroom Liquid

The first time I made this I almost threw away the dark water from the dried mushrooms. Luckily a quick search stopped me and I realized it holds more flavor than the mushrooms themselves. Now I treat that liquid like a prized ingredient in my pantry.

Customizing Your Pot

You can easily tweak this recipe depending on what is lingering in your crisper drawer or pantry. Adding root vegetables or swapping the broth can change the whole mood of the meal.

  • Try adding diced potatoes for a version that feels even more substantial.
  • A splash of soy sauce can deepen the color and add a hint of extra saltiness.
  • Keep a little extra broth nearby for when you reheat leftovers to get the consistency back.
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Close-up view of a ladle scooping hearty Mushroom Barley Soup, showcasing diced carrots and celery in a savory, steamy vegetable broth. Served in a rustic bowl. Save
Close-up view of a ladle scooping hearty Mushroom Barley Soup, showcasing diced carrots and celery in a savory, steamy vegetable broth. Served in a rustic bowl. | joliekitchen.com

This soup is more than a meal, it is a steady companion for those long quiet evenings. I hope every spoonful brings you as much comfort as it has brought me.

Questions & Answers

Can I make this soup ahead of time?

Absolutely. This soup tastes even better the next day as flavors develop. Store in the refrigerator for up to 4 days or freeze for 3 months. Add extra broth when reheating since it thickens.

Can I use other types of mushrooms?

Yes. Cremini, portobello, or button mushrooms work well. You can also add dried porcini for extra depth. Keep total mushroom quantity around 9 oz for best results.

Is pearl barley gluten-free?

No. Pearl barley contains gluten. For a gluten-free version, substitute with quinoa, rice, or buckwheat groats, adjusting cooking time accordingly.

Why strain the mushroom soaking liquid?

Dried shiitakes often retain grit from harvesting. Straining through cheesecloth or a fine sieve removes sediment while preserving the rich, umami-packed broth that adds depth.

How do I know when the barley is done?

Pearl barley typically takes 50-60 minutes to become tender. It should be chewy but not tough, with a slightly creamy texture. If it absorbs too much liquid, add more broth or water.

Can I add meat to this soup?

Yes. Diced chicken, beef, or ham works wonderfully. Add during the last 20 minutes of simmering. You can also swap vegetable broth for chicken broth for deeper flavor.

Mushroom Barley Soup

Hearty soup with dried shiitake, fresh mushrooms, and pearl barley in savory broth.

Prep Time
20 min
Time to Cook
70 min
Overall Time
90 min
Created by Nathaniel Weber


Skill Level Easy

Cuisine Type American Deli

Makes 6 Portions

Diet Details Plant-Based, No Dairy

What You Need

Mushrooms

01 1 ounce dried shiitake mushrooms
02 8 ounces white mushrooms, sliced

Grains

01 3/4 cup pearl barley, rinsed

Aromatics & Vegetables

01 2 tablespoons olive oil
02 1 medium onion, diced
03 2 medium carrots, diced
04 2 celery stalks, diced
05 3 garlic cloves, minced

Broth & Seasonings

01 8 cups low-sodium vegetable broth
02 2 bay leaves
03 1 teaspoon dried thyme
04 1 teaspoon dried parsley
05 Salt and freshly ground black pepper to taste

Garnish

01 2 tablespoons fresh parsley, chopped

How-To Steps

Step 01

Rehydrate dried mushrooms: Place dried shiitake mushrooms in a heatproof bowl and cover with 2 cups boiling water. Let soak for 20 minutes. Drain, reserving the soaking liquid, and slice the mushrooms. Strain the soaking liquid through a fine sieve to remove grit.

Step 02

Sauté aromatic vegetables: Heat olive oil in a large soup pot over medium heat. Add onion, carrots, and celery; sauté for 5 minutes until softened.

Step 03

Cook garlic: Add minced garlic and cook for 1 minute until fragrant.

Step 04

Add mushrooms: Stir in fresh mushrooms and rehydrated shiitake mushrooms. Cook for about 5 minutes until mushrooms begin to release their juices.

Step 05

Combine broth and seasonings: Add pearl barley, reserved mushroom soaking liquid, and vegetable broth. Stir in bay leaves, thyme, parsley, salt, and pepper.

Step 06

Simmer soup: Bring to a boil, then reduce heat to low. Cover and simmer for 50 to 60 minutes, stirring occasionally, until barley is tender.

Step 07

Final seasoning adjustment: Remove bay leaves. Taste and adjust seasoning as needed.

Step 08

Serve: Ladle soup into bowls and garnish with fresh parsley if desired. Serve hot.

Gear Needed

  • Large soup pot
  • Heatproof bowl
  • Fine-mesh sieve
  • Ladle
  • Cutting board and knife

Allergy Notice

Review each item for allergens and talk to a healthcare provider if needed.
  • Contains gluten from barley
  • Check store-bought broth labels for potential allergens

Nutrition (each serving)

Details shown here are for information and don't replace professional guidance.
  • Energy: 175
  • Fats: 4 g
  • Carbohydrates: 32 g
  • Proteins: 5 g