Creamy Potato and Ham Gratin: A Comforting Family Dinner
When you’re looking for a warm, creamy, and satisfying meal that the whole family can enjoy, this potato and ham gratin is a delicious choice. Tender slices of potato are layered with smoky ham, a rich homemade cream sauce, and plenty of melted cheese before being baked until beautifully golden.
This comforting casserole is easy enough for a weeknight dinner but also special enough to serve when family and friends are gathered around the table.
The combination of creamy potatoes, savory ham, and melted cheese creates a hearty dish with a wonderfully golden top and a soft, creamy center.
Why You’ll Love This Potato and Ham Gratin
This recipe is a great way to turn simple ingredients into a comforting homemade meal.
The potatoes become tender during cooking, while the homemade white sauce gives the dish a rich and creamy texture. Ham adds a delicious savory flavor, and the grated cheese melts over the top to create an irresistible golden crust.
You can also customize the recipe depending on what you have available. Gruyère, Comté, Emmental, and Cheddar all work beautifully.
Serve it as a main dish with a fresh green salad, or enjoy it as a hearty side dish alongside roasted meat or chicken.
Ingredients
For approximately 4 to 6 servings, you’ll need:
- 1 kg soft potatoes, such as Charlotte or Nicola, cut into 3–5 mm slices
- 200 to 250 g cooked or smoked ham, cut into pieces or strips
- 1 onion, finely chopped, optional
- 1 clove garlic, finely chopped, optional
- 40 g unsalted butter
- 40 g plain flour
- 500 ml whole milk
- 100 g heavy cream or crème fraîche
- Fine salt, to taste
- Freshly ground black pepper, to taste
- Grated nutmeg, to taste
- 100 to 150 g grated cheese, such as Gruyère, Comté, Emmental, or Cheddar
How to Make Potato and Ham Gratin
1. Prepare the Potatoes
Start by peeling and washing the potatoes.
Using a sharp knife or mandoline, cut them into thin slices approximately 3 to 5 mm thick. Keeping the slices relatively even helps them cook at the same rate.
Place the sliced potatoes in a large pot of salted boiling water and cook for about 10 to 12 minutes, or until they are beginning to become tender.
Be careful not to overcook them because they will continue cooking in the oven.
Drain the potatoes carefully and set them aside.
2. Prepare the Onion and Garlic
If you’re using onion and garlic, finely chop both.
Heat a little butter or oil in a pan and gently sauté the onion until it becomes soft and translucent. Add the chopped garlic and cook briefly until fragrant.
For an extra layer of flavor, you can also add a small amount of thyme.
Once softened, remove the pan from the heat and set the mixture aside.
3. Make the Creamy Sauce
The homemade sauce is what gives this gratin its rich and creamy texture.
Melt the butter in a saucepan over medium heat. Add the flour and stir continuously until the mixture forms a smooth paste, known as a roux.
Gradually pour in the whole milk while whisking constantly. This helps prevent lumps from forming.
Continue cooking and stirring until the sauce thickens.
Stir in the heavy cream or crème fraîche, then season with fine salt, freshly ground black pepper, and a small amount of grated nutmeg.
Taste the sauce and adjust the seasoning if necessary.
4. Assemble the Gratin
Preheat the oven to 180°C (350°F).
Lightly grease a gratin or baking dish with butter.
Arrange a layer of sliced potatoes across the bottom of the dish. Add some of the ham and, if using, some of the sautéed onion and garlic.
Pour some of the creamy sauce over the layer.
Continue layering the potatoes, ham, onion, and sauce until all the ingredients have been used.
Finish by spreading the remaining sauce over the top.
Finally, sprinkle the grated cheese evenly over the surface.
5. Bake Until Golden
Place the assembled gratin in the preheated oven.
Bake for approximately 30 to 40 minutes, or until the potatoes are completely tender and the cheese on top is melted and beautifully golden brown.
If the top starts browning too quickly before the potatoes are fully tender, loosely cover the dish with aluminum foil and continue baking.
Once the gratin is ready, remove it from the oven and let it rest for about 5 minutes before serving.
This short resting period allows the creamy sauce to settle and makes the gratin easier to serve.
What to Serve With Potato and Ham Gratin
This gratin is filling enough to serve as a main dish, especially when paired with a simple green salad.
A crisp lettuce salad with a light vinaigrette provides a fresh contrast to the rich and creamy potatoes.
You can also serve the gratin as a side dish with roasted chicken, beef, pork, or other roasted meats.
For a simple family dinner, all you really need is a fresh salad and some crusty bread to complete the meal.
Tips for the Best Potato Gratin
Slice the potatoes evenly. Thin, uniform slices cook more consistently and give the finished gratin a better texture.
Don’t overcook the potatoes before baking. They should be tender but still firm enough to hold their shape.
Whisk the sauce continuously. Adding the milk gradually while whisking helps create a smooth, lump-free sauce.
Choose a flavorful cheese. Gruyère and Comté give the gratin a rich, nutty flavor, while Emmental provides a mild and creamy finish. Cheddar can be used when you want a stronger cheese flavor.
Let it rest before serving. Giving the gratin a few minutes to cool slightly helps the layers settle while keeping the dish creamy.
Easy Variations
This recipe is easy to adapt to your family’s preferences.
You can replace the cooked ham with smoked ham for a stronger smoky flavor. You can also add a little thyme or another favorite herb to the sauce.
For a vegetable version, leave out the ham and add sautéed mushrooms, spinach, or another favorite vegetable.
If you prefer an extra-cheesy gratin, increase the amount of grated cheese and add a little cheese between the potato layers as well as on top.
A Cozy and Easy Family Favorite
Creamy potato and ham gratin is the kind of recipe that turns simple ingredients into a warm and satisfying meal.
With tender potatoes, savory ham, homemade cream sauce, and a golden layer of melted cheese, every bite is rich, comforting, and full of flavor.
It’s perfect for a family dinner, a weekend meal, or whenever you’re craving something hearty and homemade. Serve it fresh from the oven with a crisp green salad, and enjoy a simple dish that feels wonderfully comforting.