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Ingredients of wild mushroom crostini on marble

By using plant-based butter and plant-based mayonnaise, we made this delicious appetizer suitable for our guests who are dairy-free or plant-based without sacrificing any flavor. I chose a wild mushroom selection when I made it, but other mushrooms should work equally as well, although not portobello as they are too hearty for this recipe.

A vertical image of rows of crostinis on marble/slate cheese board.

The mushroom sauce can be made a day ahead of time to save time for the day of your dinner.

Looking for a mushroom appetizer, but maybe not this one? Consider these:

A vertical image of rows of crostinis on marble/slate cheese board.

Wild Mushroom Crostini

If you love the earthy and nutty flavor of wild mushrooms, you'll enjoy this appetizer. The flavors are enhanced with fresh thyme.
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Prep Time 45 minutes
Total Time 45 minutes
Course Appetizer
Cuisine American
Servings 8 servings
Calories 283 kcal

Ingredients
  

Mushrooms

  • 3 Tbsp butter
  • 12 oz assorted wild mushrooms shitke, oyster, crimini, black trumpet
  • 1 ½ tsp fresh thyme chopped

Thyme Vinaigrette

  • ¼ cup red wine vinegar
  • 3 Tbsp fresh thyme leaves
  • 2 Tbsp mayonnaise
  • 1 small shallot chopped
  • ½ cup olive oil plus more for brushing
  • 1 baguette sliced diagonally

Instructions
 

Mushrooms

  • Clean and slice mushrooms. Melt butter in large skillet over medium-high heat. Add mushrooms and thyme. Sauté until mushrooms are browned, about 8 min. Season with salt and pepper. Can be made 1 day ahead. Cover, chill. Rewarm before using.

Thyme Vinaigrette

  • Blend first 4 ingredients in blender 10 seconds. With machine running, gradually add 1/2 cup olive oil; blend until almost smooth. Season to taste with salt and pepper.

Assemble

  • Preheat oven to 400°F. Arrange bread slices on rimmed baking sheet. Brush with oil. Bake until beginning to crisp, about 8 minutes.
  • Mound a spoon of mushrooms on each slice. Drizzle each with thyme vinaigrette.

Notes

If you make this with plant-based butter and mayonnaise, then it will be perfect for any vegan, MIND, or mediterranean diet following guest as well as those who are avoiding dairy.

Nutrition

Serving: 1servingCalories: 283kcalCarbohydrates: 19gProtein: 4gFat: 21gSaturated Fat: 5gPolyunsaturated Fat: 4gMonounsaturated Fat: 12gTrans Fat: 0.2gCholesterol: 13mgSodium: 254mgPotassium: 202mgFiber: 2gSugar: 3gVitamin A: 276IUVitamin C: 5mgCalcium: 49mgIron: 2mg
Keyword appetizer, vegetarian
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