Creamy Porcini Mushroom & Gruyère Potato Gratin

Creamy Porcini Mushroom & Gruyère Potato Gratin is a rich, creamy potato dish with deep mushroom flavor.

introduction — Creamy Porcini Mushroom & Gruyère Potato Gratin

This gratin layers potatoes, porcini mushrooms, cream, and Gruyère for a warm, comforting bake.
It is perfect for a dinner side or a main for two to four people.
If you love mushroom dishes, you might also enjoy a creamy wild rice and mushroom soup: https://quickyandtasty.com/creamy-wild-rice-and-mushroom-soup/.

why make this recipe — Creamy Porcini Mushroom & Gruyère Potato Gratin

Make this dish for its deep mushroom taste and the melt-in-your-mouth cheese top.
It is simple to prepare and feels special for guests or family dinners.
For another easy potato idea, try an air-fryer baked potato as a quick side: https://quickyandtasty.com/air-fryer-baked-potato/.

how to make Creamy Porcini Mushroom & Gruyère Potato Gratin

Follow the steps in order and keep layers even for best bake results.
Work with thin potato slices so they cook through and absorb the cream well.
For a different spice profile, you can adapt ideas from a chermoula potato and fish stew to add herbs and lemon notes: https://quickyandtasty.com/chermoula-potato-and-fish-stew/.

Ingredients : Creamy Porcini Mushroom & Gruyère Potato Gratin

• 2 cups of porcini mushrooms (dried or fresh)
• 2 cups of thinly sliced potatoes
• 1 cup of Gruyère cheese, grated
• 1 cup of heavy cream
• 2 tablespoons of butter
• 2 cloves of garlic, minced
• Salt and pepper, to taste
• Fresh herbs (like thyme or parsley) for garnish

Directions : Creamy Porcini Mushroom & Gruyère Potato Gratin

1. Preheat the oven to 375°F (190°C).
2. If using dried porcini mushrooms, soak them in warm water for about 30 minutes, then drain and chop.
3. In a skillet, melt the butter over medium heat and sauté the garlic until fragrant.
4. Add the porcini mushrooms and cook until they are tender.
5. In a baking dish, layer half of the sliced potatoes, followed by the mushroom mixture, half of the Gruyère cheese, and a sprinkle of salt and pepper.
6. Repeat with the remaining potatoes and finish with the rest of the cheese on top.
7. Pour the heavy cream evenly over the gratin.
8. Cover with foil and bake for about 30 minutes, then remove the foil and bake for an additional 15–20 minutes until the top is golden and bubbly.
9. Garnish with fresh herbs before serving.

how to serve Creamy Porcini Mushroom & Gruyère Potato Gratin

Serve hot straight from the oven so the top stays crisp and the inside stays creamy.
Pair it with a green salad or roasted meats for a complete meal.
A simple garnish of parsley or thyme brightens the rich flavors.

how to store Creamy Porcini Mushroom & Gruyère Potato Gratin

Cool the gratin to room temperature before storing.
Cover tightly and keep in the fridge for up to 3 days.
Reheat in the oven at 350°F (175°C) until warmed through to keep the top crisp.

tips to make Creamy Porcini Mushroom & Gruyère Potato Gratin

• Slice the potatoes thin and even for uniform cooking.
• Don’t skip soaking dried porcini; it brings back texture and flavor.
• Use good quality Gruyère for best melting and flavor.
• For leftover ideas, turn slices into a warm potato side or salad; see a classic potato salad for inspiration: https://quickyandtasty.com/classic-potato-salad/.

variation (if any) — Creamy Porcini Mushroom & Gruyère Potato Gratin

• Add sautéed onions or leeks for more sweetness.
• Mix in a little white wine with the mushrooms for extra depth.
• Swap Gruyère for cheddar or fontina for a different melt and taste.

FAQs — Creamy Porcini Mushroom & Gruyère Potato Gratin

Q: Can I use other mushrooms instead of porcini?
A: Yes. Cremini, shiitake, or a mix work well. Fresh or soaked dried mushrooms both give good flavor.

Q: Can I make this ahead of time?
A: Yes. Assemble, cover, and refrigerate. Bake when ready, adding a few extra minutes if cold.

Q: Where can I buy dried porcini or good Gruyère?
A: Many grocery stores carry them, or you can buy online. Buy it here.

Q: Is this dish suitable for a vegetarian meal?
A: Yes, as written it is vegetarian. Use vegetable stock if you add any broth.

Creamy Porcini Mushroom & Gruyère Potato Gratin

A rich, creamy potato dish layered with porcini mushrooms, Gruyère cheese, and heavy cream, perfect for a comforting dinner.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 50 minutes mins

Total Time 1 hour hr 5 minutes mins

Course Main Course, Side Dish

Cuisine French

Servings 4 servings

Calories 350 kcal

Ingredients

  

Main Ingredients

• 2 cups porcini mushrooms (dried or fresh) Soak dried mushrooms in warm water if using.
• 2 cups thinly sliced potatoes Slice evenly for uniform cooking.
• 1 cup Gruyère cheese, grated Use good quality for best melting.
• 1 cup heavy cream Pour evenly over the gratin before baking.
• 2 tablespoons butter For sautéing garlic and mushrooms.
• 2 cloves garlic, minced Sauté until fragrant.
• Salt and pepper, to taste Adjust seasoning as needed.
• Fresh herbs (like thyme or parsley) for garnish Brightens the rich flavors.

Instructions

 

Preparation

• Preheat the oven to 375°F (190°C).
• If using dried porcini mushrooms, soak them in warm water for about 30 minutes, then drain and chop.
• In a skillet, melt the butter over medium heat and sauté the garlic until fragrant.
• Add the porcini mushrooms and cook until they are tender.

Layering and Baking

• In a baking dish, layer half of the sliced potatoes, followed by the mushroom mixture, half of the Gruyère cheese, and a sprinkle of salt and pepper.
• Repeat with the remaining potatoes and finish with the rest of the cheese on top.
• Pour the heavy cream evenly over the gratin.
• Cover with foil and bake for about 30 minutes, then remove the foil and bake for an additional 15–20 minutes until the top is golden and bubbly.
• Garnish with fresh herbs before serving.

Notes

Serve hot straight from the oven with a green salad or roasted meats. Cool the gratin to room temperature before storing; it keeps in the fridge for up to 3 days.

Keyword Comfort Food, Creamy Gratin, Mushroom Dish, Potato Gratin, Vegetarian Recipe