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Preheat your oven to 375°F (190°C). Lightly grease a blue, oval baking dish or a similar oven-safe dish.

Arrange the thinly sliced potatoes in an even layer in the prepared baking dish. You may overlap them slightly.

In a medium saucepan, melt the butter over medium heat.

Add the all-purpose flour to the melted butter and whisk continuously for 1-2 minutes to create a roux. It should be a pale, golden paste.

Gradually pour in the warm milk, whisking constantly to prevent lumps, until a smooth, pourable white sauce forms. Continue to cook and whisk for another 2-3 minutes until the sauce thickens slightly.

Stir in the grated garlic, salt, black pepper, and dried herbs into the white sauce. Whisk well to combine all ingredients and ensure the seasonings are evenly distributed.

Pour the prepared white sauce evenly over the sliced potatoes in the baking dish, ensuring all the potatoes are well-covered and submerged in the sauce.

Bake in the preheated oven for 35-40 minutes, or until the potatoes are tender when pierced with a fork and the top is lightly golden brown.

Remove the dish from the oven. Sprinkle the shredded cheese generously over the baked potatoes.

Return the dish to the oven for an additional 5-10 minutes, or until the cheese is melted and bubbly and the top is golden brown.

Let the potato gratin rest for a few minutes before serving.


Preheat your oven to 375°F (190°C). Lightly grease a blue, oval baking dish or a similar oven-safe dish.

Arrange the thinly sliced potatoes in an even layer in the prepared baking dish. You may overlap them slightly.

In a medium saucepan, melt the butter over medium heat.

Add the all-purpose flour to the melted butter and whisk continuously for 1-2 minutes to create a roux. It should be a pale, golden paste.

Gradually pour in the warm milk, whisking constantly to prevent lumps, until a smooth, pourable white sauce forms. Continue to cook and whisk for another 2-3 minutes until the sauce thickens slightly.

Stir in the grated garlic, salt, black pepper, and dried herbs into the white sauce. Whisk well to combine all ingredients and ensure the seasonings are evenly distributed.

Pour the prepared white sauce evenly over the sliced potatoes in the baking dish, ensuring all the potatoes are well-covered and submerged in the sauce.

Bake in the preheated oven for 35-40 minutes, or until the potatoes are tender when pierced with a fork and the top is lightly golden brown.

Remove the dish from the oven. Sprinkle the shredded cheese generously over the baked potatoes.

Return the dish to the oven for an additional 5-10 minutes, or until the cheese is melted and bubbly and the top is golden brown.

Let the potato gratin rest for a few minutes before serving.
