Caramelized Onion and Mushroom Crostini

User Reviews

4.6

102 reviews
Excellent
  • Prep Time

    20 mins

  • Cook Time

    20 mins

  • Total Time

    40 mins

  • Servings

    16

  • Calories

    91 kcal

  • Course

    Appetizer

  • Cuisine

    Italian

Caramelized Onion and Mushroom Crostini

Thinly sliced onions and chunky mushrooms caramelize in cultured butter before getting a dose of Marsala wine to top crisp crostini bread for an easy appetizer with a silky sweet taste.

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Ingredients

Servings
  • 5 tablespoons Vermont Creamery Cultured Butter Unsalted , divided
  • 1 medium yellow onion , thinly sliced
  • 8 ounces Shiitake mushrooms cleaned, stemmed and sliced
  • 8 ounces brown mushrooms cleaned, stemmed and sliced
  • 1 clove garlic , pressed or minced
  • ¼ cup marsala wine
  • 2 teaspoons fresh thyme leaves
  • ½ teaspoon kosher salt
  • ¼ teaspoon freshly ground black pepper
  • 1 loaf baguette
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Instructions

  1. Melt 4 tablespoons of the butter in a large skillet over medium heat. Add the sliced onion and mushrooms and cook for 5 minutes, stirring occasionally, until the onions and mushrooms become tender and golden. Off heat, add the Marsala wine to the onions with the thyme leaves, place back on the burner and reduce the heat to a simmer. Cook for 5-7 minutes or until jammy.
  2. While the onion mixture cooks, place the sliced bread on a foil or parchment lined baking sheet. Melt the remaining 1 tablespoon of butter in a small saucepan over medium heat or in the microwave on high for 30 seconds. Brush the bread slices with melted butter and toast in the oven until lightly browned.
  3. To assemble, mound each of the toasts with equal amounts of the caramelized onion mushroom mixture. Sprinkle with more thyme leaves and serve.

Notes

  • To Make Ahead: Prepare the caramelized onion and mushroom mixture then refrigerate for up to 3-4 days. To serve, warm in a sauce pan or in the microwave before topping the toasted crostini. 

Nutrition Information

Show Details
Calories 91kcal (5%) Carbohydrates 11g (4%) Protein 2g (4%) Fat 4g (6%) Saturated Fat 2g (10%) Cholesterol 9mg (3%) Sodium 172mg (7%) Potassium 137mg (4%) Fiber 1g (4%) Sugar 1g (2%) Vitamin A 121IU (2%) Vitamin C 1mg (1%) Calcium 18mg (2%) Iron 1mg (6%)

Nutrition Facts

Serving: 16Serving

Amount Per Serving

Calories 91 kcal

% Daily Value*

Calories 91kcal 5%
Carbohydrates 11g 4%
Protein 2g 4%
Fat 4g 6%
Saturated Fat 2g 10%
Cholesterol 9mg 3%
Sodium 172mg 7%
Potassium 137mg 3%
Fiber 1g 4%
Sugar 1g 2%
Vitamin A 121IU 2%
Vitamin C 1mg 1%
Calcium 18mg 2%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.

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Overall Rating

4.6

102 reviews
Excellent

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