Potato Gratin with Porcini and Soy Recipe

Name: Potato Gratin with Porcini and Soy
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1/4 cup soy sauce; 2 tablespoons porcini mushroom powder (see Cook's Note); 1 1/4 cups heavy cream; 3 cloves garlic; 3 sprigs fresh thyme; 1/4 cup creme fraiche; 1/4 teaspoon ground nutmeg; Kosher salt and freshly ground black pepper; 2 pounds Yukon gold potatoes, thinly sliced on a mandoline (or with a very sharp knife); 2 cups grated Gruyere cheese

Servings: persons

1
Preheat the oven to 375 degrees F. Stir together the soy sauce and mushroom powder in a small bowl and set aside.
2
Add the cream, garlic and thyme sprigs to a medium pot and set over medium-high heat.
3
Bring to a simmer, cover and remove from the heat.
4
Let stand 15 to 30 minutes.
5
Remove the garlic and thyme from the cream, then whisk in the creme fraiche, nutmeg and soy-mushroom mixture until well incorporated; season with salt and pepper.
6
Assemble the gratin by putting half of the potatoes in a single overlapping layer in the bottom of a 2-quart baking dish.
7
Coat with half of the cream mixture and sprinkle on 1 cup of the Gruyere.
8
Repeat with the remaining potato slices, cream mixture and 1 cup Gruyere.
9
Cover with foil and transfer the dish to a baking sheet.
10
Bake until the potatoes are easily pierced with a knife, about 1 hour.
11
Remove the foil and continue to bake until the top is golden brown and bubbling, 30 minutes.
12
Let sit 30 minutes before serving.

675

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 10 ingredients. The key ingredients include: 1/4 cup soy sauce, 2 tablespoons porcini mushroom powder (see Cook's Note), 1 1/4 cups heavy cream, 3 cloves garlic, and more.

Yes, Potato Gratin with Porcini and Soy falls under the General category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

That's it — enjoy your meal!

Potato Gratin with Porcini and Soy

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions