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Creamy mushroom and potato gratin in a dish being scooped with a spoon.

Potato and Mushroom Gratin with Brie

An ultra luxurious potato and mushroom gratin with caramelised brie - like potato dauphinoise but a million times better!
5 from 4 votes
Prep Time: 25 minutes
Cook Time: 1 hour 10 minutes
Total Time: 1 hour 35 minutes
Servings: 4 people
Calories: 355kcal
Author: Becca Heyes

Recipe printed from www.easycheesyvegetarian.com

Ingredients

  • 1 Tablespoon oil
  • 350 g (~ 3/4 lb) mushrooms, thinly sliced (I used a mixture of chestnut, baby portobello, and button)
  • 1 teaspoon minced garlic
  • 1/2 teaspoon dried thyme
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon ground nutmeg
  • 1/2 vegetable stock cube, crumbled
  • 450 g (~ 1 lb) potatoes
  • 1 Tablespoon butter
  • 250 ml (~ 1 cup) cream (I used single cream)
  • 200 g (~ 7 oz) brie, sliced
  • Fresh parsley, to serve (optional)

Instructions

  • Heat a dash of oil in a deep frying pan, and add the sliced mushrooms. Cook over a medium heat for around 5 minutes, stirring regularly, until fairly soft. Add the next 5 ingredients (garlic through stock cube), and cook for a few more minutes.
  • While the mushrooms are cooking, peel the potatoes and slice them very thinly. If you have a mandoline, you can use that - otherwise, just use a large knife.
  • Add the butter and cream to the pan with the mushrooms, and bring to a gentle simmer for a minute or two, until the butter has melted and the ingredients are well combined.
  • To assemble the mushroom gratin, layer up the creamy mushrooms with the sliced potatoes and the sliced brie. My baking dish measured approximately 8 x 8 inches. The exact order of your layers doesn't matter too much, but here's how I layered mine:
    - 1 or 2 tablespoons of cream spread around the bottom of the dish, to avoid sticking
    - 1/3 of the sliced potatoes
    - 1/2 of the creamy mushrooms
    - Another 1/3 of the potatoes
    - 1/2 of the brie
    - The final 1/3 of the potatoes
    - The remaining 1/2 of the creamy mushrooms
    - The remaining 1/2 of the brie
  • Drizzle any remaining cream over the dish, trying to cover any potato edges that are exposed.
  • Cover the dish with a lid or some kitchen foil, and bake at 190°C (Gas Mark 5 / 375°F) for around an hour, or until the potato slices are completely soft. If you'd like to crisp up the topping a little, remove the lid, and return to the oven for a further 10 minutes, or until crisped up to your liking.
  • If you want to, garnish with fresh parsley before serving.

Nutrition

Nutrition Facts
Potato and Mushroom Gratin with Brie
Amount Per Serving (1 portion)
Calories 355 Calories from Fat 212
% Daily Value*
Fat 23.5g36%
Saturated Fat 12.8g64%
Cholesterol 67mg22%
Sodium 364mg15%
Potassium 839mg24%
Carbohydrates 25.4g8%
Fiber 4g16%
Sugar 5g6%
Protein 15.6g31%
Calcium 121mg12%
Iron 4mg22%
* Percent Daily Values are based on a 2000 calorie diet.

Nutritional information is approximate, and will depend on your exact ingredients. Please calculate your own nutritional values if you require accuracy for health reasons.