Mushrooms au Gratin
A classic mushroom dish, perfect as an appetizer or side. Cup mushrooms are filled with a savory mixture of chopped mushroom stems, onion, parsley, and thyme, then baked until tender and golden brown.
Ingredients
- 12 large Cup Mushrooms (Aim for mushrooms about 2 inches in diameter.)
- 0.25 small Onion (About the size of the top of your thumb to the first joint.)
- 1 tablespoon Fresh Parsley (Chopped)
- 0.5 teaspoon Dried Thyme (Or 1 teaspoon fresh thyme, chopped)
- 2 tablespoons Butter
- 0.5 cup Dried Breadcrumbs (Finely ground)
- 0.25 teaspoon Salt
- 0.125 teaspoon Black Pepper
- 1 teaspoon Lemon Juice
- 2 tablespoons Fine Bread Raspings (Or finely grated breadcrumbs)
- 1 tablespoon Olive Oil
- 0.25 cup Fresh Parsley (For garnish, fried until crisp)
Instructions
- 1Preheat oven to 350°F (175°C). Gently wipe the mushrooms clean. Carefully peel the mushrooms without breaking them. Cut out the stalks close to the cup with a spoon. Scoop out the inside of the cup to make it hollow. Peel the stalks.
- 2Chop the mushroom stalks and the scooped-out parts of the mushrooms. Finely chop the onion. In a frying pan, melt the butter over medium heat. Add the chopped mushroom stalks, scooped mushroom parts, and onion. Fry until softened, about 5 minutes. Add the chopped parsley and thyme. Cook for another minute. Stir in the breadcrumbs until the mixture forms a moist paste. Season with salt, pepper, and lemon juice.
- 3Fill each mushroom cup with the prepared mixture, making the top as convex as the cup. Sprinkle fine bread raspings (or grated breadcrumbs) over the top. Pour a little oil into a baking tin. Place the mushrooms in the tin and bake gently in the preheated oven until the mushroom cups become soft and tender, about 20-25 minutes. Be careful not to overcook them, or they will break.
- 4While the mushrooms are baking, fry the remaining parsley until crisp. Carefully remove the mushrooms from the oven with an egg-slice and place them on a serving dish. Garnish with the crisp fried parsley around the edge. Serve immediately.