Ham and Potato Au Gratin is a comforting and flavorful dish that brings together the creamy goodness of potatoes, the savory richness of ham, and a perfectly baked cheese crust. This classic casserole is perfect for family dinners, potlucks, or holiday gatherings. It’s a versatile dish that’s easy to make and a great way to use up leftover ham. The combination of tender potatoes, smoky ham, and a creamy, cheesy sauce will have everyone coming back for seconds. Follow this step-by-step guide to create a delicious Ham and Potato Au Gratin that’s sure to become a new family favorite.
Ingredients
- 6 medium potatoes (Yukon Gold or Russet), peeled and thinly sliced
- 2 cups cooked ham, diced
- 1 medium onion, finely chopped
- 3 cloves garlic, minced
- 3 tablespoons butter
- 3 tablespoons all-purpose flour
- 2 cups milk (whole milk or 2%)
- 1 cup heavy cream
- 2 cups shredded cheese (Gruyère, cheddar, or a mix)
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon dried thyme
- 1/4 teaspoon ground nutmeg (optional, for added warmth)
- 1/2 cup grated Parmesan cheese
- 2 tablespoons chopped fresh parsley (optional, for garnish)
Step-by-Step Instructions
Step 1: Prepare the Ingredients
- Preheat your oven to 375°F (190°C).
- Peel the potatoes and thinly slice them using a mandoline or a sharp knife. Aim for slices about 1/8-inch thick for even cooking.
- Dice the cooked ham into small, bite-sized cubes.
- Chop the onion and mince the garlic.
Step 2: Make the Creamy Sauce
- In a medium saucepan, melt the butter over medium heat.
- Add the chopped onion and garlic to the pan. Sauté for about 3-4 minutes until the onion becomes translucent.
- Sprinkle the flour over the onions and garlic, stirring constantly to create a roux. Cook for 2 minutes to remove the raw flour taste.
- Gradually whisk in the milk and heavy cream, stirring constantly to avoid lumps.
- Continue to cook the sauce, stirring frequently, until it thickens (about 5-7 minutes).
- Add the shredded cheese, salt, pepper, dried thyme, and nutmeg. Stir until the cheese melts and the sauce is smooth.
- Remove from heat and set aside.
Step 3: Layer the Potatoes and Ham
- Grease a 9×13-inch baking dish with butter or non-stick spray.
- Arrange a layer of potato slices on the bottom of the dish, overlapping them slightly.
- Sprinkle a portion of the diced ham over the potatoes.
- Pour a ladleful of the cheese sauce over the ham and potatoes, spreading it evenly.
- Repeat these layers (potatoes, ham, and sauce) until all the ingredients are used up, finishing with a layer of cheese sauce on top.
Step 4: Add the Final Touches
- Sprinkle the grated Parmesan cheese evenly over the top layer.
- Cover the baking dish with aluminum foil.
Step 5: Bake the Dish
- Place the dish in the preheated oven and bake for 45 minutes.
- After 45 minutes, remove the foil and bake for an additional 15-20 minutes, or until the top is golden brown and bubbly.
- To check for doneness, insert a knife into the center; the potatoes should be tender.
Step 6: Let It Rest and Garnish
- Remove the dish from the oven and let it rest for 10 minutes before serving. This allows the sauce to set.
- Garnish with chopped fresh parsley for added color and freshness.
Serving and Storage Tips
- Serving: Serve hot with a side of steamed vegetables or a fresh green salad to balance the richness of the dish. A slice of crusty bread or a dinner roll can also complement the meal.
- Storage: Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F (175°C) for 20-25 minutes, or until heated through. You can also reheat in the microwave, but the oven method will maintain the crispiness of the top layer.
- Freezing: To freeze, cool the dish completely and wrap it tightly in plastic wrap, then in aluminum foil. Freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.
Helpful Notes
- Choosing Potatoes: Yukon Gold potatoes work best due to their buttery flavor and creamy texture, but Russet potatoes are also a good option.
- Cheese Variations: Feel free to experiment with different cheeses like Swiss, mozzarella, or Monterey Jack for unique flavor combinations.
- Make It Ahead: You can assemble the dish a day in advance and store it in the refrigerator. When ready to bake, remove it from the fridge 30 minutes beforehand to allow it to come to room temperature.
Tips from Well-Known Chefs
- Chef Julia Child suggests using a bit of nutmeg in creamy dishes like this to add a subtle warmth and depth of flavor.
- Chef Ina Garten recommends always using freshly grated cheese instead of pre-shredded cheese to ensure a smooth, creamy sauce, as pre-shredded varieties often contain anti-caking agents that can affect melting.
- Chef Gordon Ramsay emphasizes the importance of thinly slicing the potatoes to ensure they cook evenly and absorb the maximum flavor from the sauce.
Frequently Asked Questions
- Can I use sweet potatoes instead of regular potatoes?
- Yes, sweet potatoes can be used, but the flavor will be sweeter, and the cooking time may vary slightly.
- Can I make this dish vegetarian?
- Absolutely! Omit the ham and add sautéed mushrooms, spinach, or other vegetables of your choice for a vegetarian version.
- What can I use instead of heavy cream?
- You can substitute heavy cream with half-and-half or additional whole milk, but the sauce may be slightly less rich.
- Can I add other meats like bacon or chicken?
- Yes, diced cooked chicken or crispy bacon bits make great additions for extra protein and flavor.
- Is there a way to make this dish gluten-free?
- Substitute the all-purpose flour with a gluten-free flour blend or cornstarch to make the sauce gluten-free.
- Can I use a slow cooker for this recipe?
- Yes, layer the ingredients in a slow cooker and cook on low for 6-8 hours or high for 3-4 hours.
- How can I make the top even more crispy?
- Broil the dish for the last 2-3 minutes of baking, keeping a close eye on it to prevent burning.
- Can I use evaporated milk instead of regular milk?
- Yes, evaporated milk can be a good substitute for regular milk to create a thicker, creamier sauce.
- What can I serve with Ham and Potato Au Gratin?
- Serve with a fresh green salad, roasted vegetables, or steamed asparagus for a balanced meal.
- How do I prevent the dish from being too greasy?
- Use lean ham and remove any visible fat. Also, drain any excess fat after cooking the onions and garlic.
Conclusion
Ham and Potato Au Gratin is a delectable, creamy dish that’s simple to prepare and perfect for any occasion. With its layers of tender potatoes, savory ham, and a luscious cheese sauce, it’s guaranteed to be a crowd-pleaser. Whether you’re making it for a family dinner, a holiday gathering, or just to enjoy a warm, comforting meal, this recipe provides all the steps and tips needed to create the perfect dish every time. Enjoy!
