Creamy Potato Gratin with Cheese and Turkey Bacon | Page 2

Prep Time

25 minutes

Cook Time

60 minutes

Total Time

85 minutes

Servings

6 servings

When evenings turn cool or a family meal calls for a truly hearty dish, this gratin comes at the right time. It’s straightforward comfort food: tender potatoes, creamy sauce, golden cheese, and crispy turkey bacon.

Final result — A well-golden gratin, creamy in the center, with that crispy top that clearly does the job.

When it comes out of the oven, the top is slightly blistered, with browned edges that smell of warm butter and grilled cheese. The spoon breaks through a golden crust before falling into soft layers, coated in a pale, shiny sauce. You can almost hear the faint crackle of the gratin as the cheese catches on the dish. It’s rich, yes, but not heavy if the potatoes are thinly sliced and the sauce is well balanced.

Why you’ll love this recipe

✓Perfectly tender : Thin potato slices cook in the sauce and become soft without turning into mash. Resting after baking helps the layers hold together when serving.

✓Well-gratinéed top : The cheese placed on the last layer forms a golden crust, slightly crispy on the edges. It’s this contrast with the creamy interior that makes the dish truly satisfying.

✓Balanced smoky flavor : Turkey bacon adds a salty, smoky note without overpowering the sauce. It needs to be browned beforehand, otherwise it stays soft and loses its appeal.

✓Practical family dish : It’s prepared in a single dish and can wait a few minutes. Even warm, it keeps a pleasant texture, with a thicker sauce and rounder flavors.

Ingredient Notes

Thin potatoes, grated cheese, cream, milk, garlic, and turkey bacon: simple, but good products are key.

Potatoes : They form the base of the gratin and provide the layered structure. Choose a waxy variety, slice them 2-3 mm thick, and don’t rinse after slicing to retain the starch that helps thicken the sauce.
Turkey bacon : It brings the smoky, crispy element that wakes up the sweetness of the potatoes. Sauté it dry or with very little fat until nicely browned, then drain to avoid a greasy gratin.
Grated cheese : It provides the stretchiness in the center and the golden crust on top. A mix of Emmental and cheddar works well, but you can add some Comté for a stronger flavor.
Milk and cream : Milk lightens the sauce while cream gives it a smoother, coating texture. If you want a less rich result, replace part of the cream with whole milk, but keep enough fat to avoid a flat sauce.
Butter and flour : They form the roux that stabilizes the sauce and prevents it from becoming watery at the bottom. Mix the flour well into the melted butter before adding milk gradually, otherwise lumps will be felt when eating.
Garlic, pepper, and nutmeg : They add depth to a very mild base. Garlic can simply be rubbed on the dish or minced into the sauce, and nutmeg should remain subtle so as not to mask the cheese flavor.

Prepare the bases

Peel the potatoes and slice them thinly, ideally with a mandoline for even cooking. Slices that are too thick remain firm in the center even when the top already looks golden. While the potatoes wait, sauté the turkey bacon in a hot pan until it colors and smells distinctly of grilled smoke. If it renders some fat, keep only a thin film in the pan to cook the onion if you’re using one, because too much fat quickly weighs down the sauce.

Make a smooth sauce

In a saucepan, melt the butter gently, then add the flour and whisk until you get a pale paste that smells slightly like biscuit. Pour in the milk little by little, whisking patiently, because that’s when the sauce becomes silky or turns into a lumpy mass. Add the cream when the base starts to thicken, then season with pepper, moderate salt, and a pinch of nutmeg. The sauce should coat the whisk, not run like water, because it will loosen up with the moisture from the potatoes.

Assemble the gratin

Butter the dish, then arrange a first layer of potatoes, slightly overlapping like tiles. Add a little sauce, some turkey bacon pieces, and a handful of cheese, without emptying the pot from the start. This distribution prevents a dry layer at the bottom and a flooded one on top. Finish with cheese on the surface: it will form that golden crust, shiny in spots, with almost crispy edges.

Cook without drying

Cover the dish with aluminum foil and bake at 180°C (350°F) to let the potatoes cook in the creamy steam. This first bake is less spectacular, but it’s essential: we want tenderness before color. When a knife blade goes through the layers without resistance, remove the foil and continue baking until the top gently bubbles and takes on a golden hue. If the cheese colors too quickly, lower the rack slightly, because a gratin burnt on top and firm underneath is unforgivable.

Let it rest

When it comes out of the oven, the gratin sometimes seems a bit loose, with the sauce still simmering on the edges. Let it rest for about ten minutes before serving: the heat distributes, the sauce sets, and the slices hold together better. This resting time really changes the texture, especially if you want to serve neat portions rather than a creamy mess on the plate. Add some fresh herbs at the last moment for a green note and a livelier aroma against the hot cheese.

Tips & Tricks

Slice the potatoes very thinly, because a thick slice takes longer to cook than the sauce takes to gratiné.
Salt sparingly at first, since the cheese and turkey bacon already bring significant saltiness during cooking.
Brown the turkey bacon before assembling, because it won’t become crispy if it only cooks enclosed in the sauce.
Let the gratin rest before cutting, because the hot sauce is still runny and holds better after a few minutes.

Close-up — Tender underneath, crispy on top, well-bound sauce: exactly what you expect from a generous real gratin.

FAQs

Can this gratin be prepared in advance?

Yes, you can assemble it a few hours ahead and keep it in the refrigerator, well covered. Add 10-15 minutes of cooking time if the dish is cold from the fridge.

What type of potatoes should I choose?