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Mushroom crostini

Mushroom Crostini

What I love most about mushroom crostini is how customizable it is. You can dress it up with a bit of truffle oil, sprinkle on some goat cheese or parmesan, or add a hint of lemon zest for brightness.
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Course Appetizer, Snack
Cuisine Italian
Servings 6 servings
Calories 160 kcal

Equipment

  • Skillet or sauté pan
  • Bread knife
  • Baking Sheet
  • Pastry Brush
  • Garlic press or fine grater (optional)
  • Small mixing bowl

Ingredients
  

For the Mushroom Topping:

  • 2 tablespoons olive oil
  • 1 tablespoon unsalted butter
  • 2 cloves garlic minced
  • 1 small shallot finely chopped
  • 10 oz about 3 cups mushrooms, sliced (cremini, button, or a mix)
  • 1 teaspoon fresh thyme leaves or ½ tsp dried
  • Salt and black pepper to taste
  • 2 tablespoons dry white wine optional
  • 2 tablespoons heavy cream optional
  • Fresh parsley chopped (for garnish)

For the Crostini:

  • 1 baguette sliced into ½-inch thick rounds
  • 2 tablespoons olive oil for brushing
  • 1 garlic clove optional, for rubbing on toast
  • Grated parmesan or goat cheese optional topping

Instructions
 

Step 1: Prep the Bread

  • Preheat your oven to 375°F (190°C).
  • This gets your oven nice and hot so the bread crisps up quickly.
  • Slice the baguette into ½-inch rounds.
  • Try to keep them uniform so they toast evenly.
  • Arrange the slices on a baking sheet.
  • Lay them in a single layer without overlapping.
  • Brush the tops lightly with olive oil.
  • A pastry brush works best here. Flip and brush the other side if you like both sides golden.
  • Bake for 8–10 minutes, or until golden and crisp.
  • Keep an eye on them—some ovens run hot.
  • Pro Tip: Want extra flavor? As soon as they come out, rub a peeled garlic clove over the top of each toast while it’s still warm.

Step 2: Cook the Mushrooms

  • Heat olive oil and butter in a skillet over medium heat.
  • The combo gives you great flavor and helps the mushrooms brown nicely.
  • Add the chopped shallot and sauté for 2–3 minutes.
  • Stir until it softens and becomes fragrant.
  • Toss in the garlic and cook for another 30 seconds.
  • Don’t let it brown—it gets bitter fast.
  • Add the sliced mushrooms and thyme.
  • Stir to coat them in the oil and butter.
  • Let the mushrooms cook undisturbed for 3–4 minutes.
  • This helps them brown instead of steaming.
  • Continue to cook for another 4–5 minutes, stirring occasionally, until deeply golden.
  • Season with salt and black pepper to taste.
  • Pro Tip: Mushrooms release a lot of water—don’t overcrowd the pan or they’ll steam instead of brown.

Step 3: Deglaze and Finish the Filling

  • Pour in the white wine (if using).
  • Scrape the bottom of the pan with a wooden spoon to lift all that flavorful fond.
  • Simmer for 1–2 minutes, until the wine mostly evaporates.
  • It should smell rich and slightly tangy.
  • Stir in the heavy cream (if using).
  • Cook for 1–2 minutes more, just to warm everything through and give it a touch of richness.
  • Taste and adjust seasoning as needed.
  • A little extra salt, pepper, or even a squeeze of lemon can balance the flavors.

Step 4: Assemble the Crostini

  • Spoon the warm mushroom mixture onto each toasted baguette slice.
  • Don’t be shy—pile it on!
  • Top with a sprinkle of fresh parsley.
  • It adds color and freshness.
  • Add optional toppings like grated parmesan or goat cheese.
  • This takes them from great to next-level delicious.
  • Serve warm or at room temperature.
  • They’re perfect for snacking, sharing, or starting a cozy dinner.

Notes

Estimated Nutritional Value

  • Calories: ~160–180 kcal
  • Protein: 4–5g
  • Carbohydrates: 15–18g
  • Fat: 9–11g
  • Fiber: 1–2g
  • Sugar: ~2g
  • Sodium: ~200mg
 
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Nutrition Disclaimer:
The nutritional information provided on this website is an estimate only and is intended for general guidance. We cannot guarantee its accuracy and recommend consulting a qualified healthcare professional or registered dietitian for personalized nutrition advice.
Keyword appetizer recipes, crostini recipes, mushroom crostini