
Portobello mushrooms are a versatile ingredient with a meaty texture and umami flavour. They are often used as vegetarian burgers, sliced over pasta, or chopped and used in place of meat. Before cooking, it's important to clean the mushrooms by wiping them with a damp cloth or paper towel, or rinsing them under cold running water for 10–20 seconds. You can then remove the stems, which tend to be woody and dried out, and scoop out the gills, which can become mushy when cooked. Finally, you can slice the mushroom cap into pieces of your desired size.
| Characteristics | Values |
|---|---|
| Cleaning | Wipe with a damp cloth, paper towel, or sponge |
| Removing stems | Remove the entire stem as it tends to be woody and dried out |
| Removing gills | Use a spoon to gently remove the gills from the underside of the mushroom cap |
| Cutting | Cut the cap in half, then turn 90 degrees and slice into 1/4-inch thick slices |
| Marinating | Do not marinate for too long, about 30 minutes before grilling or roasting is sufficient |
| Cooking | Grill, sauté, bake, or roast the mushrooms |
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What You'll Learn

Cleaning portobello mushrooms
Portobello mushrooms are a great addition to countless dishes. However, before you get cooking, you'll want to make sure they're clean. Here's a step-by-step guide on how to do that:
Firstly, check your mushrooms for dirt. Mushrooms grow in dirt, so they will likely need a clean. You can do this by gently wiping the mushroom with a damp cloth, sponge, or paper towel. If you're working with a lot of small mushrooms, you might prefer to rinse them under cold running water for 10-20 seconds. You can then dry them in a salad spinner.
Next, you'll want to remove the stems. The stems of portobello mushrooms are edible but can be woody and fibrous, so most people prefer to remove them. To do this, hold the mushroom in the palm of your hand and use a paring knife to cut off the inner edges, slowly rotating the mushroom as you go.
Now, it's time to remove the gills. The gills of portobello mushrooms are also edible, but they will turn your food a murky brown, so most people prefer to remove them. Using a dessert spoon, gently scrape the gills away, being careful not to go too deep into the mushroom's flesh.
Finally, give your mushrooms a final wipe with a damp cloth or sponge to ensure they're clean and free of any remaining dirt or debris.
Now that your portobello mushrooms are clean, you can chop and prepare them according to your recipe instructions. Enjoy!
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Removing the stems
Portobello mushrooms are a great vegetarian option for burgers, pastas, and salads. They are also commonly used in place of meat in recipes. Before you start chopping, it's important to clean the mushrooms. To do this, gently wipe the mushroom cap with a damp cloth or paper towel to remove any dirt or debris. You can also rinse the mushrooms under cold running water for 10-20 seconds.
Now, let's get into removing the stems. Portobello mushroom stems tend to be woody and dried out, so they are usually removed before cooking. Here are the steps to remove the stems:
- Using your hands, carefully twist and pull the stem to detach it from the cap.
- If the stem is too tough to remove by hand, you can use a paring knife to gently cut it off. Slice carefully around the base of the stem to detach it from the cap.
- Once the stem is removed, you may notice some tough, woody, or dried-out areas on the underside of the cap. Use a paring knife to trim away any undesirable parts, being careful not to cut too deeply into the mushroom's flesh.
- After removing the stem, you can choose to further slice or chop the mushroom cap as needed for your recipe.
Remember, the stems can be set aside for other uses, such as making vegetable stock or compost.
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Removing the gills
To remove the gills, start by using a paring knife to slice off the inner edges of the mushroom cap while slowly rotating it. This will expose the gills located on the underside of the mushroom. Once the gills are exposed, use a spoon, preferably a dessert spoon, to gently scrape them away. Be careful not to go too deep into the mushroom's flesh during this step. Continue working around the mushroom until all the gills are removed.
While the gills of portobello mushrooms are edible, they can impact the texture of the cooked mushroom, and most people prefer to remove them. However, some people choose to keep the gills and cook the mushrooms with a vinaigrette drizzled over them.
After removing the gills, you can slice the mushroom cap into pieces of your desired size. Portobello mushrooms are known for their meaty texture, so slightly thicker slices are usually preferred.
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Slicing the cap
Once the mushroom is clean, remove the stem by hand or with a paring knife. The stem of a portobello mushroom is often woody and dried out, so it is usually removed before cooking. After removing the stem, you may also want to remove the gills from the underside of the cap. The gills are also edible, but they can become mushy when cooked, and removing them can extend the shelf life of the mushroom. To remove the gills, use a spoon or dessert spoon to gently scrape them away, being careful not to go too deep into the mushroom's flesh.
Now you are ready to slice the cap. First, set the mushroom cap-side down on the end where the stem was and cut it in half. Then, turn it 90 degrees and slice it into 1/4-inch to 1/2-inch thick slices. You can adjust the thickness of the slices depending on your desired texture and cooking method. For example, if you are using the portobello mushroom as a vegetarian burger patty, you may want to slice it into thicker pieces to emphasize its meaty texture. On the other hand, if you are using the mushroom in a stir-fry or pasta dish, you may want to slice it more thinly.
Portobello mushrooms are a versatile ingredient that can be grilled, roasted, sautéed, or baked. They are known for their meaty texture and umami flavor, making them a popular vegetarian alternative to meat. Whether you are slicing, quartering, or chopping portobello mushrooms, always make sure to work carefully and deliberately to achieve your desired result.
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Cooking methods
Portobello mushrooms are a versatile ingredient that can be cooked in a variety of ways. Here are some cooking methods to consider:
Grilling or Roasting
Before grilling or roasting portobello mushrooms, it is important to clean them. While some sources advise against washing mushrooms, others suggest that it is safe to quickly rinse whole portobellos under cold running water for 10-20 seconds. Alternatively, you can use a damp cloth, paper towel, or sponge to gently wipe the mushroom caps clean.
Once cleaned, you can prepare the mushrooms for cooking. Start by removing the stems, which tend to be woody and dried out. You may also choose to remove the gills, as they can become mushy when cooked. Using a spoon or a paring knife, gently scrape away the gills, being careful not to go too deep into the mushroom's flesh.
After cleaning and preparing the mushrooms, you can slice them into pieces of your desired size. If you plan to cook the cap whole, it is recommended to score it lightly on the top side to allow steam to escape, preventing the mushroom from distorting as it cooks. You can also marinate the mushrooms before grilling or roasting, but be mindful that mushrooms are porous and can absorb too much liquid if left to marinate for too long. About 30 minutes should be enough time for the flavours to penetrate the mushroom.
Sautéing
Portobello mushrooms can also be sautéed. Slice the mushrooms into thin pieces and cook them in a pan with a small amount of liquid such as water, wine, soy sauce, Worcestershire sauce, or balsamic vinegar. You can also add other ingredients such as garlic butter, dried garlic, butter, salt, pepper, and parsley.
Baking
For a baked portobello mushroom, try stuffing the caps with a mixture of garlic butter, dried garlic, butter, salt, pepper, and parsley. Place the stuffed mushrooms on a baking sheet and bake in the oven at 380 degrees Fahrenheit for about 25 minutes.
Grilling
Portobello mushrooms can also be grilled. Remove the stems and leave the gills intact. Coat both sides of the mushrooms with a sauce of your choice, such as BBQ sauce, and wrap them in foil with some red onions. Grill for 12-15 minutes.
Stir-Frying and Soups
For stir-fries and soups, slice or quarter the portobello mushrooms and add them to the dish.
Pasta and Pizza
When using portobello mushrooms in pasta or pizza, slice the mushrooms and add them to the dish.
As a Burger
Portobello mushrooms are a popular vegetarian alternative to beef burgers. Simply cook the caps and serve them with your favourite toppings. You can also marinate the mushroom caps before grilling or frying.
Salads, Omelettes, and Stuffings
Baby portobello mushrooms, also known as cremini mushrooms, are smaller and better suited for use in salads, omelettes, and stuffings.
Remember, when preparing portobello mushrooms, always start with fresh, firm caps and stems, and avoid those that appear shrivelled or soft.
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Frequently asked questions
First, clean the mushrooms by gently wiping the caps with a damp cloth or paper towel. Then, carefully remove the stems with your hands. If you want to remove the gills, use a spoon or paring knife to gently scrape them away from the underside of the cap.
You can chop portobello mushrooms into slices, quarters, or diced pieces of your desired thickness and size. For slices, cut the mushroom in half, turn it 90 degrees, and slice into pieces. For quarters, follow the same steps but slice each half again. For diced pieces, cut the mushroom into slices or quarters, then chop into smaller pieces.
While the gills of portobello mushrooms are edible, most people prefer to remove them as they can become mushy when cooked. Removing the gills can also extend the shelf life of the mushrooms. However, some people choose to leave the gills intact, especially when grilling or baking the mushrooms whole.

























