This Mary Berry dauphinoise potatoes recipe layers thinly sliced potatoes with cream and milk, baking them slowly until the top turns deep golden and the inside turns soft, silky and tender.

This version uses a short ingredient list and a few clear steps, so it suits a quiet midweek dinner just as well as a more formal roast. It pairs well with most meats and reheats nicely the next day, making it a useful dish to have on hand. From start to finish, it is ready in around 1 hour 30 minutes.

Ingredients

For the dauphinoise potatoes

800g Maris Piper potatoes, peeled and very thinly sliced
1 garlic clove, peeled and halved
300ml double cream
200ml whole milk
25g unsalted butter, softened
1/4 tsp freshly grated nutmeg
Salt and freshly ground black pepper, to taste

For the topping

50g Gruyère cheese, finely grated (optional)

How to Make Mary Berry Dauphinoise Potatoes

Prepare the oven and dish: Heat the oven to 160C (140C fan) and rub the inside of a 1.2 litre baking dish with the cut side of the garlic clove, then with the softened butter.
Slice the potatoes: Peel the potatoes and slice them as thinly as possible, around 2 to 3mm thick, using a mandoline or a sharp knife so they cook evenly.
Warm the cream mixture: Pour the cream and milk into a saucepan, add the nutmeg and a good pinch of salt and pepper, then warm gently over low heat until just starting to steam, this helps the potatoes cook evenly without curdling the cream.
Layer the potatoes: Arrange a layer of sliced potatoes in the prepared dish, slightly overlapping, then spoon over a little of the warm cream mixture.
Repeat the layers: Continue layering potatoes and cream until all the slices are used, finishing with a layer of cream poured evenly over the top.
Press down gently: Press the layers down lightly with the back of a spoon so the cream rises through the potatoes and no air pockets remain.
Cover and bake: Cover the dish loosely with foil and bake for 50 minutes, until a knife slides through the potatoes with little resistance.
Add the topping: Remove the foil, scatter over the grated Gruyère if using, then return to the oven uncovered for a further 20 to 25 minutes, until the top turns deep golden and bubbling at the edges.
Rest before serving: Leave the dish to rest for 10 minutes once out of the oven, this allows the cream to settle so the slices hold together when served.

Tips for the Best Mary Berry Dauphinoise Potatoes

Why does my dauphinoise turn out watery instead of creamy?

This usually happens when the potatoes release too much liquid during baking. Choose a starchy variety such as Maris Piper and slice the potatoes thinly and evenly so they cook through without leaving excess water in the dish.

Why did my cream curdle or separate?

This happens when the cream is heated too quickly or allowed to boil rather than just warmed. Keep the heat low when warming the cream and milk and pour it over the potatoes before it bubbles.

Why are the potatoes still firm in the centre after baking?

This means the slices were cut too thick or the dish needs longer in the oven. Slice the potatoes no thicker than 3mm and check with a knife near the end of cooking to see if they give easily.

How do I stop the top from browning too fast?

Keep the dish covered with foil for most of the baking time and only remove it for the final 20 to 25 minutes, so the top has time to turn golden without catching.

Why do the layers fall apart when I serve it?

The dish needs a short rest after baking so the cream can firm up slightly around the potatoes. Let it stand for about 10 minutes before cutting and serving.

Serving Suggestions

Serve alongside roast chicken or roast beef for a comforting Sunday lunch
Pair with a simple green salad dressed with a sharp vinaigrette to cut through the richness
Scatter a few rocket leaves over the top for colour and a peppery finish
Serve with grilled lamb chops for a simple midweek dinner
Spoon alongside baked salmon for a lighter evening meal

Storage

Room temperature

Leave the dauphinoise to cool, then keep it covered at room temperature for no more than 2 hours before moving it to the fridge.

Refrigerator

Store in an airtight container in the fridge for up to 3 days. Reheat gently in the oven at 160C, covering loosely with foil so the top does not dry out before it is warmed through.

Freezing

Once fully cooled, freeze in a freezer-proof container for up to 2 months. Defrost overnight in the fridge before reheating in the oven until piping hot throughout.

Nutrition

Calories: 320-350 kcal
Carbohydrates: 22g
Protein: 6g
Fat: 25g
Saturated Fat: 15g
Sodium: 180mg

These nutrition values are estimates and may vary depending on the specific ingredients used and the size of each serving.

FAQs

Can I use semi-skimmed milk instead of whole milk?

Yes, semi-skimmed milk works fine in this recipe, though the finished sauce will be slightly less rich than when made with whole milk.

Can I make this dauphinoise ahead of time?

Yes, assemble the dish a few hours ahead and keep it covered in the fridge, then bake when needed, adding a few extra minutes to the cooking time if it goes into the oven cold.

Can I freeze dauphinoise potatoes?

Yes, it freezes well once fully baked and cooled. Thaw it in the fridge overnight before reheating in the oven until hot all the way through.

What size dish works best for this recipe?

A 1.2 litre shallow baking dish suits this quantity well, letting the potatoes cook in a thin, even layer rather than a deep, slow-cooking block.

Can I add cheese to this recipe?

Yes, a scattering of grated Gruyère or mature Cheddar over the top adds a savoury, golden crust, though the classic version is often left plain.

Conclusion

This Mary Berry dauphinoise potatoes recipe turns a handful of simple ingredients into a rich, golden side dish that suits both weeknight dinners and special occasions. The thin slices of potato, baked slowly in cream, give a tender, melting texture under a deep golden crust, ready in around 1 hour 30 minutes from start to finish.

This recipe makes enough to serve 6 as a side dish, and it reheats well the next day if there happen to be leftovers. Try it alongside a roast or a simple grilled meat, and leave a comment below to share how it turned out. If you enjoyed this, you might also like mary berry carrot and parsnip soup recipe.