What is Mary Berry Potato Gratin Recipe?
Potato Gratin, also known as gratin dauphinois, is a classic French dish that Mary Berry’s recipe elevates with simplicity and deliciousness. This creamy, cheesy potato dish is a perfect comfort food side for roasted meats, poultry, or fish.
What Goes Best with Mary Berry Potato Gratin Recipe?
- Roasted Meats: Pair with roast chicken, beef, lamb, or pork for a hearty meal.
- Salad: A fresh green salad with a light vinaigrette balances the richness of the gratin.
- Vegetables: Serve alongside steamed vegetables like broccoli, green beans, or carrots.
- Grilled Fish: A light fish like salmon or cod pairs beautifully with the creamy texture.
Ingredients
- 900g (2 lbs) potatoes (Maris Piper or King Edward recommended)
- 2 garlic cloves, crushed
- 300ml (10 fl oz) double cream
- 300ml (10 fl oz) milk
- 50g (2 oz) grated Gruyère cheese (optional)
- Salt and freshly ground black pepper
- Nutmeg (optional, for added flavor)
- Butter, for greasing the dish
How to Prepare Mary Potato Gratin Recipe

Instructions:
- Preheat the oven: Set the oven to 160°C (320°F) or Gas Mark 3.
- Prepare the potatoes: Peel and slice the potatoes thinly (about 3mm/⅛ inch thick). You can use a mandoline for even slices.
- Layer the potatoes: Grease a large baking dish with butter and layer the potato slices evenly, slightly overlapping each slice.
- Prepare the cream mixture: In a bowl, mix the crushed garlic, double cream, milk, salt, and pepper. Add a pinch of nutmeg if desired.
- Pour over the potatoes: Slowly pour the cream mixture over the layered potatoes, ensuring that all layers are well coated. Sprinkle Gruyère cheese over the top if using.
- Bake the gratin: Cover the dish with foil and bake for about 1 hour. After 1 hour, remove the foil and bake for an additional 30-40 minutes until the top is golden brown and the potatoes are tender when pierced with a knife.
- Rest and serve: Let the gratin rest for 10 minutes before serving to allow the flavors to meld and the texture to set.
Notes
- Gruyère cheese: This is optional but adds a nice depth of flavor. If you prefer, you can substitute with cheddar or parmesan.
- Nutmeg: A small pinch adds a subtle warmth to the dish, but it can be omitted.
- Cream and Milk Ratio: You can adjust the cream-to-milk ratio if you want a lighter dish (e.g., use more milk and less cream).
How to Serve Mary Berry Potato Gratin Recipe
- Serve as a side dish with roasted meats, fish, or poultry.
- Add a fresh, crisp salad or steamed vegetables for a balanced meal.
- It also pairs well with a glass of white wine like Chardonnay or Sauvignon Blanc.
How to Reheat Mary Berry Potato Gratin Recipe
- Oven: Preheat the oven to 180°C (350°F). Cover the gratin with foil and heat for 20-25 minutes until warmed through.
- Microwave: Reheat individual portions in the microwave for 1-2 minutes, though this may slightly affect the texture.
How to Store Leftovers of Mary Berry Potato Gratin Recipe
- Refrigerate: Store leftovers in an airtight container and refrigerate for up to 3 days.
- Freeze: Freeze portions by wrapping tightly in foil or plastic wrap. Store in a freezer-safe container for up to 1 month. Defrost in the fridge before reheating.
Frequently Asked Questions Regarding Mary Berry Potato Gratin Recipe
- Can I make potato gratin ahead of time?
Yes, you can prepare the dish and bake it a day in advance. Reheat in the oven before serving. - Can I use different types of cheese?
Absolutely. You can substitute Gruyère with cheddar, parmesan, or even blue cheese for a stronger flavor. - What are the best potatoes for gratin?
Starchy potatoes like Maris Piper or King Edward work best as they give a creamy texture. - Can I make it without cream?
For a lighter version, you can use more milk and a small amount of butter or half-and-half instead of cream. - How do I prevent the potatoes from browning while slicing?
Place the potato slices in cold water as you slice them to prevent browning, then pat dry before layering. - Can I add other vegetables to the gratin?
Yes, thinly sliced onions, leeks, or even butternut squash can be added for variation. - How do I know when the gratin is done?
The top should be golden brown, and a knife should easily pierce through the potatoes without resistance. - Is there a vegan version of potato gratin?
You can use plant-based cream and milk alternatives, like coconut milk or oat cream, and vegan cheese. - Why did my gratin come out dry?
If your gratin is dry, you might not have used enough cream or milk. Make sure the liquid covers the potato layers. - Can I make this with sweet potatoes?
Yes, sweet potatoes can be used for a different flavor and color profile, but they may cook faster, so adjust the baking time accordingly.
Nutritional Information of Mary Berry Potato Gratin Recipe (per serving, based on 6 servings)
- Calories: 350 kcal
- Carbohydrates: 40g
- Protein: 6g
- Fat: 20g
- Saturated Fat: 12g
- Cholesterol: 65mg
- Sodium: 200mg
- Fiber: 3g
- Sugar: 3g