A rich and creamy gratin made with layers of potatoes, mushrooms, and Gruyère cheese, perfect for a comforting side dish.
Ingredients
Main Ingredients
- 2tbspSalted Butter
- 4 1/2cupsCremini Mushrooms, thinly sliced
- 3cloveGarlic, minced
- 1cupHeavy Cream
- 1cupSour Cream
- 1tspKosher Salt
- 1pinchGround Nutmeg
- 1/3cupMilk
- 2tbspAll-Purpose Flour
- 2 1/2lbRusset Potatoes, peeled and thinly sliced
- 1 1/2cupsGruyère Cheese, shredded
- Ground Black Pepper, as needed
- Fresh Parsley, to taste
How to make Creamy Mushroom and Potato Gratin
Preparation
Preheat oven to 375 degrees F (190 degrees C) and butter a large 3-quart casserole dish.
Cooking Mushrooms
Melt butter in a large skillet over medium-high heat until starting to foam.
Add mushrooms and cook until lightly browned and the moisture has evaporated.
Add garlic and continue to cook, stirring often for 1-2 minutes. Set aside.
Preparing Cream Mixture
Whisk together heavy cream, sour cream, kosher salt, ground black pepper, and ground nutmeg.
In a separate bowl, whisk together milk and flour until smooth. Add to the sour cream and heavy cream mixture and whisk until incorporated.
Assembling Gratin
Spread half of the potato slices evenly on the bottom of the prepared casserole dish.
Scatter half of the sautéed mushrooms and half of the Gruyère cheese evenly over the potatoes.
Repeat with remaining potatoes, mushrooms, and cheese.
Pour the cream mixture evenly over the potatoes. Give the pan a gentle shake to help flatten everything out.
Baking
Cover and bake for 45-60 minutes, checking at 45 minutes. The potatoes should be almost tender in the center.
Remove the cover and bake for an additional 20 minutes until the top is golden.
Serving
Remove from oven and allow to rest for 10 minutes before serving.
Garnish with fresh parsley if desired.
Tips & Tricks
For a more intense flavor, use a mix of cremini and white mushrooms.
Ensure the potatoes are sliced evenly for consistent cooking.
FAQS
How do I make creamy mushroom and potato gratin from scratch?
To make creamy mushroom and potato gratin from scratch, start by preheating your oven to 375°F (190°C). Sauté sliced cremini mushrooms in butter until browned, then add minced garlic. In a separate bowl, whisk together heavy cream, sour cream, salt, pepper, and nutmeg. Layer thinly sliced russet potatoes, sautéed mushrooms, and Gruyère cheese in a buttered casserole dish, pouring the cream mixture over the top. Bake covered for 45-60 minutes, then uncover and bake for an additional 20 minutes until golden.
Is creamy mushroom and potato gratin suitable for a vegetarian diet?
Yes, creamy mushroom and potato gratin is suitable for a vegetarian diet as it contains no meat. The dish is rich and flavorful, thanks to the combination of mushrooms and Gruyère cheese, making it a perfect comforting side for vegetarians.
What can I substitute for Gruyère cheese in this gratin recipe?
If you don't have Gruyère cheese, you can substitute it with Swiss cheese or a combination of mozzarella and Parmesan for a similar creamy texture and flavor. Cheddar cheese can also work, but it will change the flavor profile slightly.
How should I store leftover creamy mushroom and potato gratin?
To store leftover creamy mushroom and potato gratin, let it cool completely, then cover it tightly with plastic wrap or transfer it to an airtight container. It can be stored in the refrigerator for up to 3-4 days. For longer storage, consider freezing it for up to 2 months. Reheat in the oven until warmed through.
What dishes pair well with creamy mushroom and potato gratin?
Creamy mushroom and potato gratin pairs well with a variety of dishes. It complements roasted meats like chicken or beef, and is also a great side for a fresh green salad or steamed vegetables. For a complete meal, serve it alongside grilled fish or a hearty vegetable stew.
Loading reviews...
Saramin
(@678sarin)
My name is Saramin is a culinary enthusiast with a flair for transforming everyday ingredients into delightful, flavour-packed dishes. Passionate about home cooking, Sarin specializes in creating easy-to-follow recipes inspired by global cuisines. With a focus on fresh, wholesome ingredients, they make cooking accessible and enjoyable for cooks at any level. My name is Saramin is a culinary enthusiast with a flair for transforming everyday ingredients into delightful, flavour-packed dishes. Passionate about home cooking, Sarin specializes...
Marnirni-apinthi Building, Lot Fourteen,
North Terrace, Adelaide, South Australia, 5000
Australia