The Mushroom & Brie Crostini is an exquisite appetizer that will elevate your dinner parties and holiday gatherings. This recipe combines the rich flavors of sautéed mushrooms with the creamy texture of Brie cheese, all served atop a crispy baguette. It’s not just delicious; it’s easy to prepare, making it perfect for both novice cooks and seasoned chefs alike. Whether you’re entertaining guests or enjoying a cozy night in, these crostinis are sure to impress with their gourmet appeal.
Why You’ll Love This Recipe
- Quick Preparation: With a total time of just 35 minutes, you can whip up this delightful appetizer without spending hours in the kitchen.
- Flavor Explosion: The combination of Baby Bella mushrooms and gooey Brie creates a mouthwatering experience that will leave your taste buds dancing.
- Versatile Serving Options: Perfect for any occasion—from casual gatherings to elegant soirées—these crostinis are adaptable to suit your event’s theme.
- Easy to Customize: Feel free to add your favorite herbs or spices for a personal touch, making each batch unique.
- Crowd-Pleasing Appeal: These appetizers are not only visually stunning but also incredibly satisfying, ensuring everyone comes back for more.
Tools and Preparation
To make your cooking experience seamless, gather these essential tools before starting on your Mushroom & Brie Crostini.
Essential Tools and Equipment
- Baking sheet
- Skillet
- Knife
- Cutting board
- Brush for oil
Importance of Each Tool
- Baking sheet: A must-have for evenly toasting the baguette slices and baking the assembled crostinis to perfection.
- Skillet: Essential for sautéing mushrooms quickly while developing their rich flavor without needing a lot of added fat.
- Knife: A sharp knife ensures clean cuts when slicing the baguette and chopping ingredients like garlic and parsley.

Ingredients
Here’s what you’ll need to create these delightful Mushroom & Brie Crostini:
For the Crostini Base
- 1 baguette (Sliced into 1/2 inch thick rounds)
- 1 tbsp olive oil (used for brushing)
For the Mushroom Topping
- 250 g Baby Bella Mushrooms – thinly sliced
- 2 garlic cloves – minced
- 1/4 cup Marsala apple vinegar
- 1 package Brie Cheese – sliced
- 1 tbsp salt and pepper (to taste)
- 1 bunch fresh parsley (finely chopped for garnish)
- 1 dash crushed red pepper flakes (OPTIONAL to add a little heat)
How to Make Mushroom & Brie Crostini
Step 1: Prepare the Baguette
Preheat your oven to 375°F (190°C).
* Place the baguette slices on a baking sheet.
* Brush both sides of each slice with olive oil.
* Toast in the oven for about 3-5 minutes, or until golden brown. Remove from oven and set aside.
Step 2: Cook the Mushrooms
In a large skillet, heat about 2 tablespoons of olive oil over medium heat.
* Add minced garlic and sauté until fragrant, about 1 minute.
* Add sliced Baby Bella mushrooms. Cook while stirring occasionally until they release moisture and become golden brown, approximately 5-7 minutes.
* Pour in Marsala apple vinegar and let simmer until reduced by half, around 2-3 minutes.
* Season with salt, pepper, and optional red pepper flakes. Stir well before removing from heat.
Step 3: Assemble the Crostinis
On each toasted baguette slice:
* Lay a slice of Brie so it covers the crostini completely.
* Spoon a generous amount of mushroom mixture over the Brie.
* Return assembled baguette slices to the baking sheet.
Step 4: Bake
Transfer the baking sheet back into the oven.
Bake for about 3-5 minutes until the Brie starts melting.
Step 5: Serve
Remove from oven and let cool slightly.
Garnish with freshly chopped parsley before serving.
Serve immediately while warm and gooey. Enjoy your Mushroom & Brie Crostini!
How to Serve Mushroom & Brie Crostini
Mushroom & Brie Crostini is a delightful appetizer that can be served in various ways to elevate your dining experience. Here are some creative serving suggestions to impress your guests.
Pair with Wine
- White Wine: A crisp white wine complements the creamy brie and earthy mushrooms perfectly.
- Sparkling Water: For a non-alcoholic option, serve with sparkling water garnished with lemon slices for freshness.
Add Fresh Garnishes
- Microgreens: Sprinkle microgreens on top for an added crunch and a pop of color.
- Balsamic Reduction: Drizzle balsamic reduction over the crostinis for a tangy, sweet finish.
Create a Platter
- Cheese Board: Arrange the crostinis on a cheese board with assorted cheeses and fruits for a beautiful presentation.
- Charcuterie Elements: Include olives, nuts, and dried fruits to enhance the flavor profile of your appetizer spread.
How to Perfect Mushroom & Brie Crostini
Achieving the perfect Mushroom & Brie Crostini is all about attention to detail. Follow these tips for an unforgettable dish.
- Use Fresh Ingredients: Always opt for fresh mushrooms and high-quality brie to enhance flavor.
- Toast Your Baguette Properly: Ensure the baguette is well-toasted but not overly hard; this creates the ideal crunchy base.
- Sauté Mushrooms Thoroughly: Cook mushrooms until golden brown to bring out their rich flavor and ensure they don’t release too much moisture.
- Serve Immediately: To enjoy that gooey brie texture, serve crostinis right after baking while they’re still warm.
- Experiment with Toppings: Feel free to add other toppings like caramelized onions or sautéed spinach for extra layers of flavor.
Best Side Dishes for Mushroom & Brie Crostini
To complement your Mushroom & Brie Crostini, consider serving these delicious side dishes. They will round out your meal beautifully.
- Mixed Green Salad: A light salad with vinaigrette adds freshness and balances the richness of the crostini.
- Roasted Vegetables: Seasonal roasted vegetables provide a hearty and healthy side option.
- Stuffed Peppers: Colorful stuffed peppers filled with quinoa or rice offer a flavorful contrast.
- Butternut Squash Soup: A warm bowl of butternut squash soup pairs wonderfully with the savory crostinis.
- Bruschetta: Serve fresh tomato bruschetta as another variation of toasted bread topped with vibrant flavors.
- Grilled Asparagus: Lightly seasoned grilled asparagus brings a smoky element that complements the dish well.
Common Mistakes to Avoid
Making Mushroom & Brie Crostini can be simple, but small mistakes can hinder your results. Here are some common pitfalls to watch out for:
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Skipping the Toasting Step: Not toasting the baguette can result in a soggy crostini that won’t hold up under the toppings. Always toast your bread until golden for the best texture.
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Overcooking the Mushrooms: Cooking mushrooms too long can make them rubbery. Sauté them just until they’re golden brown and tender for optimal flavor and texture.
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Using Cold Brie: If you add cold Brie directly on hot crostini, it won’t melt properly. Allow the cheese to come to room temperature before assembling for gooey goodness.
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Ignoring Seasoning: Neglecting to season your mushroom mixture can lead to bland bites. Always taste and adjust salt and pepper as needed for a well-rounded flavor.
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Rushing Assembly: Assembling crostinis too quickly can lead to spills or uneven toppings. Take your time to layer each ingredient carefully for a beautiful presentation.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftover Mushroom & Brie Crostini in an airtight container.
- They will last about 2-3 days in the refrigerator.
Freezing Mushroom & Brie Crostini
- These crostinis are best enjoyed fresh, but you can freeze unassembled components.
- Store baguette slices and mushroom mixture separately in freezer-safe containers.
- Use within 1-2 months for best quality.
Reheating Mushroom & Brie Crostini
- Oven: Preheat to 350°F (175°C) and bake for about 5-7 minutes until warmed through.
- Microwave: Heat in short bursts of 20 seconds; be cautious as this can make the bread chewy.
- Stovetop: Warm them in a skillet over low heat, covered, for a few minutes until heated through.
Frequently Asked Questions
If you’re curious about making Mushroom & Brie Crostini, here are some common questions:
Can I use other types of cheese?
You can substitute Brie with cheeses like camembert or goat cheese for different flavors and textures.
How do I make Mushroom & Brie Crostini vegetarian?
Simply stick with mushrooms and skip any meat ingredients, as this recipe is already vegetarian-friendly!
Can I prepare Mushroom & Brie Crostini ahead of time?
Yes! Prepare the mushroom mixture and toast the baguette slices ahead of time. Assemble right before serving for freshness.
What are good toppings for Mushroom & Brie Crostini?
Consider adding caramelized onions, walnuts, or fresh herbs like thyme or chives for extra flavor.
What should I serve alongside these crostinis?
Pair your crostinis with a light salad or a platter of fresh fruits and vegetables to complement the rich flavors.
Final Thoughts
Mushroom & Brie Crostini is not only an impressive appetizer but also highly versatile. Feel free to customize it by adding your favorite herbs or spices! Whether it’s a casual gathering or a more formal event, these delicious bites will surely delight your guests. Give it a try!

Mushroom & Brie Crostini
- Total Time: 35 minutes
- Yield: Makes approximately 12 servings 1x
Description
Elevate your gatherings with Mushroom & Brie Crostini, a delightful appetizer that combines sautéed Baby Bella mushrooms and creamy Brie cheese atop crispy baguette slices. This elegant yet simple dish is perfect for impressing guests at dinner parties or enjoying during cozy nights in. With its gourmet appeal and quick preparation time of just 35 minutes, this recipe is accessible for both novice cooks and seasoned chefs alike. Customize it with your favorite herbs or spices to make each batch unique. Serve warm, and watch as everyone comes back for more!
Ingredients
- 1 baguette (sliced into 1/2 inch thick rounds)
- 250 g Baby Bella mushrooms (thinly sliced)
- 1 package Brie cheese (sliced)
- 2 garlic cloves (minced)
- 1/4 cup apple vinegar
- Olive oil (for brushing)
- Fresh parsley (finely chopped for garnish)
- Salt and pepper (to taste)
Instructions
- Preheat oven to 375°F (190°C). Arrange baguette slices on a baking sheet and brush both sides with olive oil. Toast for about 3-5 minutes until golden brown.
- In a skillet over medium heat, add olive oil and sauté minced garlic until fragrant. Add sliced mushrooms, cooking until golden brown (about 5-7 minutes). Pour in vinegar and simmer until reduced by half, then season with salt, pepper, and optional red pepper flakes.
- Assemble crostinis: Place Brie on each toasted slice, followed by a generous spoonful of the mushroom mixture. Return to the oven for another 3-5 minutes until the cheese melts.
- Garnish with parsley before serving warm.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Category: Appetizer
- Method: Baking
- Cuisine: Italian
Nutrition
- Serving Size: 1 serving
- Calories: 145
- Sugar: 0.6g
- Sodium: 310mg
- Fat: 8g
- Saturated Fat: 3g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 13g
- Fiber: 0.8g
- Protein: 4g
- Cholesterol: 15mg