How to Make Portobello Mushroom Gratin - A Step-by-Step Guide

Portobello mushroom gratin is a rich and delicious dish that is perfect as an appetizer or a main course. This recipe combines the earthy and meaty flavor of portobello mushrooms with creamy cheese and a crunchy topping, creating a dish that is sure to impress your family and friends. Whether you are a fan of mushrooms or just looking for a new and exciting dish to try, this portobello mushroom gratin is a must-try.

The key ingredient in this recipe is the portobello mushroom, which i...

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Ingredients

  • 4 tablespoons butter
  • 2 leeks, diced
  • 1 celery root, chopped
  • 3 large portobello mushroom caps, diced
  • 1 tablespoon chopped fresh tarragon, divided
  • 1 tablespoon chopped fresh chives, divided
  • 1 cup panko bread crumbs
  • 1 cup grated Gruyere cheese
  • 1 ½ tablespoons all-purpose flour
  • ¾ cup heavy cream
  • 2 tablespoons water, or as needed

Information

  • Prep Time: 25 mins
  • Cook Time: 35 mins
  • Total Time: 1 hr
  • Servings: 6
  • Yield: 6 servings

  • Preheat the oven to 400 degrees F (200 degrees C).
  • Melt butter in a frying pan over medium heat. Add leeks and celery root and cook for 10 minutes. Add mushroom pieces, 1/2 of the tarragon, and 1/2 of the chives; continue cooking until mushrooms give off liquid, about 6 minutes more.
  • Meanwhile, combine bread crumbs and Gruyere cheese in a mixing bowl.
  • Add flour to the frying pan with the mushroom mixture. Add cream in a stream and stir until it becomes an even color, about 3 minutes. Add 1/2 of the bread crumb mixture and stir until cheese starts to melt, about 2 minutes. Turn off heat. Transfer mixture to a baking dish and top with remaining tarragon, chives, and bread crumb mixture. Add a small amount of water to moisten the mixture.
  • Bake in the preheated oven until the cheese is bubbly, about 10 minutes.
  • Use a spatula to scoop portions and serve immediately.
  • Nutrition

    431 cal.

    • Total Fat: 26g
    • Saturated Fat: 16g
    • Cholesterol: 81mg
    • Sodium: 368mg
    • Total Carbohydrate: 43g
    • Dietary Fiber: 6g
    • Total Sugars: 8g
    • Protein: 16g
    • Vitamin C: 15mg
    • Calcium: 299mg
    • Iron: 3mg
    • Potassium: 1598mg