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A Luxe Potato Gratin of Gruyère and Golden Parmesan
Golden, composed, and quietly indulgent, this potato gratin layers finely sliced Yukon Gold potatoes with cream, garlic, and thyme, enriched by the gentle nuttiness of Gruyère and the savoury depth of Parmesan. As it bakes, the layers soften into a velvety whole, while the surface turns deeply golden and delicately crisp. Elegant enough for a celebratory table yet comforting in its simplicity, each spoonful offers a perfect balance of richness, warmth, and refined flavour.
Prepare the Dish - Preheat the oven to 190°C (170°C fan). Lightly rub the inside of a baking dish with the cut side of a garlic clove, then butter generously to create a fragrant, non-stick base.
Slice the Potatoes - Using a mandoline or a sharp knife, slice the potatoes into fine, even rounds—approximately 3mm thick—for a beautifully uniform finish.
Begin the Layers - Arrange half of the potatoes in the dish, overlapping them gently. Season with half the salt, pepper, thyme, and garlic, ensuring each layer is delicately flavoured.
Add the First Cheese Layer - Scatter over half of the Gruyère and Parmesan, allowing it to settle between the slices.
Repeat with Care - Continue with the remaining potatoes, followed by the rest of the seasoning and cheese, building a second, equally balanced layer.
Pour the Cream - Slowly pour the cream over the gratin, letting it seep through the layers until just covered.
Finish the Surface - Dot the top with small pieces of butter and add a final, light scattering of Parmesan for a crisp, golden finish.
Bake Gently - Cover loosely with foil and bake for 30 minutes, allowing the potatoes to soften and absorb the cream.
Uncover and Deepen the Colour - Remove the foil and return to the oven for a further 20–25 minutes, until the top is richly golden and bubbling at the edges.
Rest Before Serving - Allow the gratin to rest for 10–15 minutes before serving, so the layers settle and slice cleanly into neat, elegant portions.
A few details make all the difference
01
Prepare and layer
Butter the garlic-rubbed dish, arrange 3 mm potato slices, season, and layer with Gruyère and Parmesan.
02
Add cream and finish
Pour over the cream, then top with butter, Parmesan, and thyme.
03
Bake and serve
Bake covered for 30 minutes, uncovered for 20–25 minutes, then rest for 10–15 minutes before slicing.
Why this recipe works
There is a certain restraint to its luxury. The ingredients are humble, almost familiar, yet transformed through patience and balance. Yukon Gold potatoes lend their natural butteriness, absorbing the cream as they soften, while Gruyère brings a gentle nuttiness that deepens with heat. Parmesan, finely grated, forms that irresistible, golden crust—delicate, savoury, and just crisp enough to give way with a quiet crack. A whisper of garlic and thyme threads through it all, grounding the richness with subtle, aromatic lift.
Cook’s notes
Slice the potatoes with precision
Thin, even rounds (around 3mm) ensure the layers cook gently and settle into a tender, uniform texture.
Allow the gratin a moment of rest once out of the oven
This brief pause lets the cream thicken and the layers set, so each portion holds beautifully when served.
Select your cheeses with care
A well-aged Gruyère and a true Parmesan will reward you with deeper flavour, a finer melt, and that perfectly balanced, golden crust.
Prepare the Dish - Preheat the oven to 190°C (170°C fan). Lightly rub the inside of a baking dish with the cut side of a garlic clove, then butter generously to create a fragrant, non-stick base.
Slice the Potatoes - Using a mandoline or a sharp knife, slice the potatoes into fine, even rounds—approximately 3mm thick—for a beautifully uniform finish.
Begin the Layers - Arrange half of the potatoes in the dish, overlapping them gently. Season with half the salt, pepper, thyme, and garlic, ensuring each layer is delicately flavoured.
Add the First Cheese Layer - Scatter over half of the Gruyère and Parmesan, allowing it to settle between the slices.
Repeat with Care - Continue with the remaining potatoes, followed by the rest of the seasoning and cheese, building a second, equally balanced layer.
Pour the Cream - Slowly pour the cream over the gratin, letting it seep through the layers until just covered.
Finish the Surface - Dot the top with small pieces of butter and add a final, light scattering of Parmesan for a crisp, golden finish.
Bake Gently - Cover loosely with foil and bake for 30 minutes, allowing the potatoes to soften and absorb the cream.
Uncover and Deepen the Colour - Remove the foil and return to the oven for a further 20–25 minutes, until the top is richly golden and bubbling at the edges.
Rest Before Serving - Allow the gratin to rest for 10–15 minutes before serving, so the layers settle and slice cleanly into neat, elegant portions.
Cook’s notes
Slice the potatoes with precision: Thin, even rounds (around 3mm) ensure the layers cook gently and settle into a tender, uniform texture.
Allow the gratin a moment of rest once out of the oven: This brief pause lets the cream thicken and the layers set, so each portion holds beautifully when served.
Select your cheeses with care: A well-aged Gruyère and a true Parmesan will reward you with deeper flavour, a finer melt, and that perfectly balanced, golden crust.
Cooking mode
A Luxe Potato Gratin of Gruyère and Golden Parmesan
Prepare the Dish - Preheat the oven to 190°C (170°C fan). Lightly rub the inside of a baking dish with the cut side of a garlic clove, then butter generously to create a fragrant, non-stick base.
Slice the Potatoes - Using a mandoline or a sharp knife, slice the potatoes into fine, even rounds—approximately 3mm thick—for a beautifully uniform finish.
Begin the Layers - Arrange half of the potatoes in the dish, overlapping them gently. Season with half the salt, pepper, thyme, and garlic, ensuring each layer is delicately flavoured.
Add the First Cheese Layer - Scatter over half of the Gruyère and Parmesan, allowing it to settle between the slices.
Repeat with Care - Continue with the remaining potatoes, followed by the rest of the seasoning and cheese, building a second, equally balanced layer.
Pour the Cream - Slowly pour the cream over the gratin, letting it seep through the layers until just covered.
Finish the Surface - Dot the top with small pieces of butter and add a final, light scattering of Parmesan for a crisp, golden finish.
Bake Gently - Cover loosely with foil and bake for 30 minutes, allowing the potatoes to soften and absorb the cream.
Uncover and Deepen the Colour - Remove the foil and return to the oven for a further 20–25 minutes, until the top is richly golden and bubbling at the edges.
Rest Before Serving - Allow the gratin to rest for 10–15 minutes before serving, so the layers settle and slice cleanly into neat, elegant portions.
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