Portobello Mushroom Gratin

A great addition to your holiday dressing is this cranberry relish with Jell-O. To ensure that the flavor is truly rich, I always make it a few days before the main meal.

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

Ingredients

  1. 4 tablespoons butter
  2. 2 leeks, diced
  3. 1 celery root, chopped
  4. 3 large portobello mushroom caps, diced
  5. 1 tablespoon chopped fresh tarragon, divided
  6. 1 tablespoon chopped fresh chives, divided
  7. 1 cup panko bread crumbs
  8. 1 cup grated Gruyere cheese
  9. 1 ½ tablespoons all-purpose flour
  10. ¾ cup heavy cream
  11. 2 tablespoons water, or as needed

Instructions

  1. Preheat the oven to 400 degrees F (200 degrees C).
  2. 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.
  3. Meanwhile, combine bread crumbs and Gruyere cheese in a mixing bowl.
  4. 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.
  5. Bake in the preheated oven until the cheese is bubbly, about 10 minutes.
  6. Use a spatula to scoop portions and serve immediately.
  7. You can use chicken broth in place of water, if preferred.

Nutrition Facts

Calories 431 kcal
Carbohydrate 43 g
Cholesterol 81 mg
Dietary Fiber 6 g
Protein 16 g
Saturated Fat 16 g
Sodium 368 mg
Sugars 8 g
Fat 26 g
Unsaturated Fat 0 g

 

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