The Mushroom & Brie Crostini is an exquisite appetizer that will steal the spotlight at your next dinner party or holiday gathering. This delectable dish features perfectly sautéed mushrooms paired with creamy Brie cheese on crunchy crostini, making it a guaranteed crowd-pleaser. The combination of flavors and textures creates a delightful bite that everyone will love!
Why You’ll Love This Recipe
- Easy to Prepare – With just a few simple steps, you can whip up this impressive appetizer in no time.
- Flavorful Combination – The rich flavors of Baby Bella mushrooms and gooey Brie cheese complement each other beautifully.
- Versatile Appetizer – Perfect for any occasion, from casual get-togethers to fancy dinners.
- Customizable Heat – You can easily adjust the spice level by adding crushed red pepper flakes for a little kick.
- Fresh Garnish – A sprinkle of fresh parsley adds a pop of color and enhances the dish’s presentation.
Tools and Preparation
Before you dive into making Mushroom & Brie Crostini, it’s essential to have the right tools on hand. This will help streamline your cooking process.
Essential Tools and Equipment
- Baking sheet
- Skillet
- Knife
- Cutting board
- Basting brush
Importance of Each Tool
- Baking Sheet – Provides ample space to toast baguette slices evenly.
- Skillet – Ideal for sautéing mushrooms quickly while retaining their flavor and texture.
- Knife – Ensures precise slicing of ingredients for even cooking.
- Cutting Board – Protects your countertops and offers a stable surface for chopping.

Ingredients
For the Crostini
- 1 baguette (sliced into 1/2 inch thick rounds)
- 1 tbsp olive oil (used for brushing)
For the Mushroom Mixture
- 250 g Baby Bella Mushrooms (thinly sliced)
- 2 garlic cloves (minced)
- 1/4 cup Marsala apple vinegar
For Assembly
- 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 the 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 the slices are toasted. Remove and set aside.
Step 2: Cook the Mushrooms
- In a large skillet, heat about 2 tablespoons of olive oil over medium heat.
- Add the garlic and sauté until fragrant, about 1 minute.
- Add the sliced Baby Bella mushrooms to the skillet. Cook, stirring occasionally, until they release their moisture and become golden brown, about 5-7 minutes.
- Pour in the Marsala apple vinegar and let it simmer until reduced by half, which should take about 2-3 minutes.
- Sprinkle in salt and pepper. If using red pepper flakes, add them now. Stir to combine and remove from heat.
Step 3: Assemble the Crostinis
- Lay a slice of Brie on each toasted baguette slice, ensuring it covers completely.
- Spoon a generous amount of mushroom mixture over each slice of Brie.
- Place loaded baguette slices back on the baking sheet.
Step 4: Bake
Transfer the baking sheet back to the oven and bake for about 3-5 minutes, or just until the Brie starts to melt.
Step 5: Serve
- Remove from oven and let cool for a minute.
- Garnish with chopped fresh parsley before serving.
- Serve immediately while the Brie is still warm and gooey!
Enjoy your delicious Mushroom & Brie Crostini!
How to Serve Mushroom & Brie Crostini
Mushroom & Brie Crostini makes a delightful appetizer that can elevate any gathering. It pairs well with various accompaniments that enhance its rich flavors and textures.
Pair with a Fresh Salad
- Mixed Green Salad – A light salad with arugula, spinach, and a lemon vinaigrette complements the richness of the crostini.
- Caprese Salad – The fresh mozzarella, tomatoes, and basil add a refreshing contrast to the savory mushrooms and creamy Brie.
Accompanying Dips
- Hummus – A smooth chickpea dip offers a creamy texture and balances the dish’s flavors.
- Olive Tapenade – This tangy spread adds an extra layer of flavor that enhances the crostini experience.
Beverages to Enjoy
- Sparkling Water – The bubbles cleanse your palate between bites, making each one taste as fresh as the first.
- Herbal Iced Tea – A refreshing option that provides a hint of sweetness without overpowering the crostini.
How to Perfect Mushroom & Brie Crostini
Perfecting Mushroom & Brie Crostini requires attention to detail and quality ingredients. Here are some tips to ensure your appetizer shines.
- Use Fresh Ingredients – Always opt for fresh mushrooms and herbs for maximum flavor.
- Toast Your Baguette Properly – Ensure the slices are golden brown but not too hard; this keeps them crispy yet soft enough to hold toppings.
- Balance Flavors – Adjust salt, pepper, and vinegar according to your taste preferences for a well-rounded dish.
- Don’t Overcook the Mushrooms – Cook just until they are golden brown; overcooking can lead to a rubbery texture.
- Serve Immediately – For the best experience, serve while warm so guests enjoy the gooey Brie at its finest.
Best Side Dishes for Mushroom & Brie Crostini
To create a well-rounded meal or event spread, consider serving these side dishes alongside your Mushroom & Brie Crostini.
- Garlic Bread – A classic choice that pairs beautifully with any Italian-inspired dish.
- Roasted Vegetables – Seasonal veggies like zucchini and bell peppers roasted with olive oil bring color and nutrition.
- Stuffed Peppers – Bell peppers filled with quinoa or rice provide a hearty option that complements the crostini.
- Bruschetta – Tomato-based bruschetta adds another layer of flavor while maintaining an Italian theme.
- Cheese Platter – Include a variety of cheeses alongside fruits, nuts, and crackers for added snacking options.
- Antipasto Skewers – Skewered olives, cherry tomatoes, and marinated artichokes offer easy-to-eat bites full of flavor.
Common Mistakes to Avoid
To ensure your Mushroom & Brie Crostini turn out perfectly, avoid these common mistakes.
- Skipping the Toasting Step: Not toasting the baguette slices can lead to soggy crostinis. Always toast them until golden for a better texture.
- Overcooking the Mushrooms: If you cook mushrooms too long, they can become rubbery. Aim for a golden brown color and tender texture.
- Ignoring Seasoning: Underseasoning can dull the flavors of your dish. Don’t forget to season with salt and pepper to enhance the taste.
- Using Cold Brie: Cold Brie doesn’t melt well. Let it sit at room temperature before placing it on the crostini for optimal gooeyness.
- Rushing Assembly: Assembling too quickly may lead to uneven distribution of ingredients. Take your time to ensure each crostini gets an equal share of mushrooms and cheese.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftover Mushroom & Brie Crostini in an airtight container.
- They will stay fresh for up to 3 days in the refrigerator.
Freezing Mushroom & Brie Crostini
- Wrap individual crostinis tightly in plastic wrap or aluminum foil.
- Freeze for up to 2 months for best quality.
Reheating Mushroom & Brie Crostini
- Oven: Preheat your oven to 350°F (175°C) and bake for about 10 minutes or until heated through.
- Microwave: Place on a microwave-safe plate and heat in short intervals (15-20 seconds) until warm.
- Stovetop: Warm in a skillet over medium heat, covering it with a lid to help retain moisture.
Frequently Asked Questions
What is a Mushroom & Brie Crostini?
Mushroom & Brie Crostini is a delightful appetizer featuring toasted baguette slices topped with sautéed mushrooms and melted brie cheese.
How do I make Mushroom & Brie Crostini vegetarian-friendly?
The recipe is already vegetarian-friendly as it does not contain meat. Just ensure that all ingredients used are plant-based.
Can I use different types of cheese instead of Brie?
Yes! You can substitute other creamy cheeses like Camembert or goat cheese if you prefer something different.
How long does it take to prepare Mushroom & Brie Crostini?
The total preparation time is approximately 35 minutes, including prep and cooking time.
Can I prepare Mushroom & Brie Crostini ahead of time?
You can prepare the mushroom mixture ahead of time and assemble the crostinis just before baking for fresh results.
Final Thoughts
Mushroom & Brie Crostini is an irresistible appetizer that’s perfect for any gathering. Its rich flavors and elegant presentation make it a crowd favorite. Feel free to customize it by adding toppings like caramelized onions or different herbs to suit your taste!

Mushroom & Brie Crostini
- Total Time: 35 minutes
- Yield: Approximately 12 servings 1x
Description
Mushroom & Brie Crostini is a delectable appetizer that effortlessly combines rich, sautéed Baby Bella mushrooms with creamy Brie cheese atop crispy toasted baguette slices. This dish is not only visually appealing but also boasts a wonderful medley of flavors and textures that will impress your guests at any gathering. Perfect for casual get-togethers or elegant dinners, these crostinis can be customized to suit your taste, whether you prefer a hint of spice from crushed red pepper flakes or a fresh touch from parsley garnish. Easy to prepare and deliciously satisfying, this recipe is sure to be a hit at your next event.
Ingredients
- 1 baguette (sliced into 1/2 inch thick rounds)
- 250 g Baby Bella mushrooms (thinly sliced)
- 2 garlic cloves (minced)
- 1/4 cup Marsala apple vinegar
- 1 package Brie cheese (sliced)
- Olive oil (for brushing and cooking)
- 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 3-5 minutes until golden brown.
- In a skillet, heat olive oil over medium heat. Sauté minced garlic until fragrant, then add sliced mushrooms. Cook until golden brown, about 5-7 minutes. Pour in the Marsala apple vinegar and simmer until reduced by half. Season with salt, pepper, and optional crushed red pepper flakes.
- Place a slice of Brie on each toasted baguette slice, followed by a generous spoonful of the mushroom mixture. Return to the oven to bake for another 3-5 minutes until Brie melts.
- Garnish with chopped parsley before serving warm.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Category: Appetizer
- Method: Baking
- Cuisine: Mediterranean
Nutrition
- Serving Size: 1 serving
- Calories: 150
- Sugar: 1g
- Sodium: 230mg
- Fat: 9g
- Saturated Fat: 4g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 14g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 20mg
Keywords: For an extra kick, consider adding sautéed onions or different herbs to the mushroom mixture. If you have dietary preferences, try substituting Brie with Camembert or goat cheese for unique flavor variations.