This comforting mushroom barley soup is perfect for a chilly day. It combines the earthy flavors of mushrooms with the nutty texture of pearl barley, creating a hearty and satisfying dish. The addition of aromatic thyme and savory vegetable broth makes this soup a delightful treat for your taste buds.
While most of the ingredients for this mushroom barley soup are commonly found in your pantry, you might need to pick up pearl barley and vegetable broth if they are not staples in your kitchen. Pearl barley can usually be found in the grains or rice section of the supermarket, and vegetable broth is typically located in the soup or broth aisle.

Ingredients for Mushroom Barley Soup
Pearl barley: A nutritious grain that adds a chewy texture and nutty flavor to the soup.
Olive oil: Used for sautéing the vegetables, it adds a rich, fruity flavor.
Onion: Provides a sweet and savory base for the soup.
Garlic: Adds a pungent, aromatic flavor that enhances the overall taste.
Mushrooms: The star ingredient, offering an earthy and umami-rich taste.
Vegetable broth: The liquid base that brings all the flavors together.
Thyme: An herb that adds a subtle, earthy aroma.
Salt: Enhances the flavors of all the ingredients.
Black pepper: Adds a hint of spice and depth to the soup.
Technique Tip for This Recipe
When sautéing the onion and garlic, make sure to cook them until they are translucent and fragrant, but not browned. This helps to develop a sweet and mellow base flavor for the soup. Additionally, when adding the mushrooms, allow them to cook until they release their moisture and start to brown, which enhances their umami flavor and adds depth to the soup.
Suggested Side Dishes
Alternative Ingredients
pearl barley - Substitute with farro: Farro has a similar chewy texture and nutty flavor, making it a good alternative to pearl barley.
olive oil - Substitute with canola oil: Canola oil has a neutral flavor and similar cooking properties, making it a suitable replacement for olive oil.
onion - Substitute with shallots: Shallots offer a milder and slightly sweeter flavor compared to onions, which can add a different but pleasant taste to the soup.
garlic - Substitute with garlic powder: If fresh garlic is unavailable, garlic powder can provide a similar flavor, though it is less pungent.
mushrooms - Substitute with zucchini: Zucchini can provide a similar texture and absorb the flavors of the soup well, though it will lack the earthy taste of mushrooms.
vegetable broth - Substitute with chicken broth: Chicken broth can be used if a non-vegetarian option is acceptable, as it provides a rich and savory flavor.
thyme - Substitute with oregano: Oregano has a robust flavor that can complement the other ingredients in the soup similarly to thyme.
salt - Substitute with soy sauce: Soy sauce can add a salty and umami flavor, enhancing the overall taste of the soup.
black pepper - Substitute with white pepper: White pepper has a slightly different flavor profile but can still provide the necessary heat and spice to the soup.
Other Alternative Recipes Similar to This Soup
How to Store or Freeze This Soup
- Allow the mushroom barley soup to cool to room temperature before storing. This helps prevent condensation, which can lead to soggy barley and diluted flavors.
- Transfer the soup to airtight containers. Glass containers with tight-fitting lids are ideal, but high-quality plastic containers or resealable freezer bags also work well.
- If using freezer bags, lay them flat in the freezer to save space and ensure even freezing. Once frozen, you can stack them upright like books.
- Label each container or bag with the date and contents. This helps you keep track of how long the soup has been stored and ensures you use it within a safe timeframe.
- Store the soup in the refrigerator for up to 4 days. For longer storage, place it in the freezer, where it can last for up to 3 months.
- When reheating, thaw frozen soup in the refrigerator overnight. Alternatively, you can use the defrost setting on your microwave.
- Reheat the soup on the stovetop over medium heat, stirring occasionally to ensure even heating. If the soup has thickened too much, add a splash of vegetable broth or water to reach your desired consistency.
- Taste the reheated soup and adjust the seasoning if necessary. Sometimes, salt and pepper may need to be added to refresh the flavors.
- For an extra burst of freshness, consider adding a handful of chopped fresh herbs like parsley or a squeeze of lemon juice just before serving.
How to Reheat Leftovers
Stovetop Method:
- Pour the mushroom barley soup into a saucepan.
- Heat over medium-low heat, stirring occasionally to ensure even heating.
- Add a splash of vegetable broth or water if the soup has thickened too much.
- Once the soup is heated through, adjust the seasoning if needed and serve hot.
Microwave Method:
- Transfer the soup to a microwave-safe bowl.
- Cover the bowl with a microwave-safe lid or a microwave-safe plate to prevent splatters.
- Heat on high for 2-3 minutes, stirring halfway through to ensure even heating.
- If the soup is not hot enough, continue to heat in 30-second intervals, stirring in between.
- Let it sit for a minute before serving to allow the heat to distribute evenly.
Slow Cooker Method:
- Pour the leftover soup into the slow cooker.
- Set the slow cooker to low heat.
- Cover and heat for 1-2 hours, stirring occasionally.
- Once the soup is thoroughly heated, adjust the seasoning if needed and serve.
Oven Method:
- Preheat your oven to 350°F (175°C).
- Transfer the soup to an oven-safe dish and cover it with aluminum foil.
- Heat in the oven for about 20-30 minutes, stirring halfway through.
- Check to ensure the soup is heated through before serving.
Best Tools for Making This Soup
Large pot: Used to cook the soup and hold all the ingredients as they simmer together.
Wooden spoon: Ideal for stirring the ingredients in the pot without scratching its surface.
Chef's knife: Essential for chopping the onion, mincing the garlic, and slicing the mushrooms.
Cutting board: Provides a safe and clean surface for preparing the vegetables.
Measuring cups: Used to measure the pearl barley and vegetable broth accurately.
Measuring spoons: Necessary for measuring the thyme, salt, and black pepper.
Ladle: Useful for serving the hot soup into bowls.
Garlic press: Optional tool for mincing the garlic more efficiently.
Soup bowls: For serving the finished mushroom barley soup.
Stove: Provides the heat source for cooking the soup.
How to Save Time on Making This Soup
Pre-chop ingredients: Chop the onion, garlic, and mushrooms in advance and store them in the fridge.
Use quick-cooking barley: Opt for quick-cooking pearl barley to reduce cooking time.
Make broth ahead: Prepare and freeze vegetable broth in portions for easy use.
Batch cooking: Double the recipe and freeze half for a quick meal later.
Instant pot option: Use an Instant Pot to cut down on cooking time significantly.
Pre-measure spices: Measure out the thyme, salt, and black pepper before starting.

Mushroom Barley Soup Recipe
Ingredients
Main Ingredients
- 1 cup Pearl Barley
- 2 tablespoon Olive Oil
- 1 cup Onion, chopped
- 2 cloves Garlic, minced
- 8 oz Mushrooms, sliced
- 6 cups Vegetable Broth
- 1 teaspoon Thyme
- 1 teaspoon Salt
- ½ teaspoon Black Pepper
Instructions
- 1. Heat the olive oil in a large pot over medium heat.
- 2. Add the chopped onion and garlic, and sauté until softened.
- 3. Add the sliced mushrooms and cook until they release their moisture and start to brown.
- 4. Stir in the pearl barley, vegetable broth, thyme, salt, and pepper.
- 5. Bring to a boil, then reduce heat and simmer for about 45 minutes, or until the barley is tender.
- 6. Adjust seasoning if needed and serve hot.
Nutritional Value
Keywords
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