If you’re on the hunt for a dish that combines creamy, cheesy goodness with hearty potatoes and savory ham, Potato and Ham Au Gratin is exactly what you need. This classic dish is a surefire crowd-pleaser, perfect for family gatherings, holiday meals, or a comforting weeknight dinner. With thinly sliced potatoes layered with a rich cheese sauce and smoky ham, it’s the ultimate indulgence that’s surprisingly easy to make.

Why You’ll Love Potato and Ham Au Gratin

This dish offers the perfect balance of flavors and textures. The creamy sauce, infused with garlic and thyme, clings to the tender potatoes, while layers of melty cheddar and mozzarella add decadence. The addition of ham brings a savory depth, making it a complete meal in one dish.

Ingredients for Potato and Ham Au Gratin

Here’s everything you’ll need to prepare this delightful dish:

Main Ingredients

• 1 lb russet potatoes: Thinly sliced, approximately 1/8 inch thick. No need to peel.
• 3 cups ham: Sliced or diced.
• 2 tbsp butter: For sautéing.
• 1/2 white onion: Diced for flavor.
• 4-6 cloves garlic: Minced for a fragrant base.
• 1/3 cup all-purpose flour: To thicken the sauce.
• 1 1/2 cup half-and-half: Adds creaminess.
• 1 cup 2% milk: Helps create the perfect sauce consistency.
• 1 cup chicken broth: Adds savory depth to the sauce.
• 2 sprigs thyme: For a subtle, herby flavor.
• 1 cup shredded cheddar cheese: Adds sharpness.
• 1 1/2 cups shredded mozzarella cheese: For gooey, stretchy goodness.
• 1 tsp salt: Adjust to taste.

Optional Toppings

• Fresh parsley or chives for garnish.

How to Make Potato and Ham Au Gratin

Follow these step-by-step instructions to create a flawless dish:

Step 1: Prepare the Potatoes

1. Scrub and clean the potatoes thoroughly.
2. Slice them thinly (about 1/8 inch thick). A mandoline slicer is great for uniform slices.
3. Set the potatoes aside.

Step 2: Preheat the Oven

Preheat your oven to 350°F (175°C). Grease a 12-inch oval dish or a 9×13-inch rectangular casserole dish to prevent sticking.

Step 3: Make the Cheese Sauce

1. In a medium pot over medium heat, melt the butter.
2. Add diced onions and minced garlic, stirring for 1–2 minutes until softened.
3. Stir in the flour to form a roux. Cook for 1 minute to eliminate the raw flour taste.
4. Gradually whisk in the half-and-half, milk, chicken broth, thyme, and salt. Stir constantly to avoid lumps.
5. Bring the mixture to a boil, then reduce the heat and simmer until it thickens (about 2 minutes).
6. Remove from heat and stir in 1 cup of cheddar and 1 cup of mozzarella until melted. Discard the thyme stems.

Step 4: Assemble the Layers

1. Spread a thin layer of cheese sauce at the bottom of the prepared dish.
2. Add 1/3 of the potatoes, arranging them in an even layer.
3. Spread 1/3 of the cheese sauce over the potatoes, then layer 1/2 of the ham on top.
4. Repeat with another layer of potatoes, cheese sauce, and ham.
5. For the final layer, add the remaining potatoes and top with the remaining cheese sauce. Sprinkle 1/2 cup of mozzarella on top.

Step 5: Bake

1. Place the casserole dish on the middle rack of the oven. Place a cookie sheet on a lower rack to catch drips.
2. Bake uncovered for 1 hour and 30 minutes, or until the potatoes are tender when pierced with a knife.
3. If the top browns too quickly, cover with foil.

Step 6: Rest and Serve

1. Remove the dish from the oven and let it rest for 15 minutes to set.
2. Garnish with fresh parsley or chives, slice, and serve.

Tips for the Best Potato and Ham Au Gratin

1. Use the Right Potatoes: Russet potatoes are ideal for their starch content, which helps create a creamy consistency.
2. Slice Uniformly: Even slices ensure the potatoes cook evenly. A mandoline slicer can help.
3. Don’t Skip the Resting Time: Letting the dish rest ensures the layers hold together when serving.
4. Customize the Cheese: While cheddar and mozzarella are classics, you can experiment with Gruyère, Parmesan, or Monterey Jack for unique flavors.

Nutritional Information

Nutrient	Amount per Serving (1 of 8 servings)
Calories	365
Protein	18g
Carbohydrates	28g
Fat	21g
Sodium	900mg
Calcium	240mg

FAQs About Potato and Ham Au Gratin

1. Can I make this dish ahead of time?

Yes! Assemble the casserole and cover it with foil. Refrigerate for up to 24 hours before baking. You may need to add a few extra minutes to the baking time.

2. Can I use a different type of potato?

Absolutely. Yukon Gold potatoes are another great option as they are naturally creamy.

3. Can I freeze leftovers?

Yes. Store the fully cooked dish in an airtight container and freeze for up to 3 months. Reheat in the oven at 350°F until warmed through.

4. Can I make it vegetarian?

Yes. Omit the ham and use vegetable broth instead of chicken broth.

5. What other proteins can I use?

Diced cooked chicken, turkey, or even bacon can be delicious substitutes for ham.

6. How do I reheat leftovers?

Cover with foil and bake at 350°F for 20–25 minutes. You can also microwave individual portions.

Make It Tonight!

Potato and Ham Au Gratin is the perfect blend of cheesy, savory, and creamy comfort. Whether you’re hosting a dinner or just treating yourself, this dish is a guaranteed hit. Gather your ingredients, preheat your oven, and let the magic happen in your kitchen tonight!

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