Description
A rich and creamy Potato and Mushroom Gratin featuring layers of thinly sliced potatoes, sautéed mushrooms, and crumbled Gorgonzola cheese. Baked to golden perfection with a creamy heavy cream sauce and topped with Parmesan cheese, this comforting dish is perfect as a hearty side or a satisfying vegetarian main.
Ingredients
Scale
Vegetables
- 4 large potatoes, thinly sliced
- 8 oz mushrooms, sliced
- 2 cloves garlic, minced
- 1 teaspoon fresh thyme leaves (optional)
Dairy
- 1 cup Gorgonzola cheese, crumbled
- 2 cups heavy cream
- 1 tablespoon butter
- 1/2 cup grated Parmesan cheese
Seasonings
- Salt and pepper to taste
Instructions
- Preheat the oven: Set your oven to 375°F (190°C) to prepare for baking the gratin.
- Sauté garlic: In a skillet over medium heat, melt the butter, then add the minced garlic and cook until fragrant, about 1-2 minutes.
- Cook mushrooms: Add the sliced mushrooms to the skillet and sauté until they soften and release their moisture, approximately 5-7 minutes. Season with salt and pepper.
- Prepare the baking dish: Lightly grease the baking dish to prevent sticking and layer half of the thinly sliced potatoes evenly at the bottom.
- Add mushroom layer: Evenly spread the sautéed mushrooms over the potato layer, then sprinkle half of the crumbled Gorgonzola cheese on top.
- Layer remaining potatoes: Place the remaining potato slices on top of the mushroom and cheese layer. Season with salt, pepper, and thyme leaves if using.
- Add cream: Pour the heavy cream evenly over all the layers, ensuring it seeps through evenly.
- Top with Parmesan: Sprinkle grated Parmesan cheese over the entire surface to create a golden crust.
- Cover and bake: Cover the dish tightly with foil and bake in the preheated oven for 40 minutes to allow the potatoes to cook through.
- Uncover and finish baking: Remove the foil and continue baking for an additional 20 minutes, until the top becomes golden, bubbly, and the potatoes are tender.
- Rest before serving: Allow the gratin to rest outside the oven for 10 minutes to set before slicing and serving.
Notes
- Using a mandoline slicer can help achieve uniformly thin potato slices for even cooking.
- If desired, swap heavy cream for half-and-half to reduce richness slightly.
- Fresh thyme is optional but adds a lovely herbal aroma that complements mushrooms and cheese.
- Letting the gratin rest after baking helps enhance texture and flavor when served.
- For a gluten-free dish, ensure all cheeses and seasonings used are certified gluten-free.
