Augratin Potatoes is a cheesy side dish that is perfect to serve with your Christmas dinner. Easy ingredients makes this dish simple to make.

Au gratin potatoes in a casserole dish
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Au Gratin Potatoes Recipe:

This Potatoes Au Gratin Recipe is a classic side dish that we serve every Christmas. This casserole dish is made with thinly slice potatoes, onions and a creamy sauce is poured over to make a cheesy casserole recipe.

We love that this potato casserole is loaded with two different types of cheese that makes the perfect creamy sauce. The potatoes are baked fork tender to make an amazing holiday side dish.

Our Christmas dinner usually consist of the traditional recipes. We love to make a roasted turkey and ham with many different sides. This au gratin potatoes or our Crock Pot Au Gratin Potatoes are always on the menu and a family favorite.

Au gratin potatoes in a casserole dish

What are Au Gratin Potatoes?

Au gratin potatoes is a side dish that is made up of potatoes, cream and cheese. These ingredients are placed in a casserole dish and baked.

What is the Best Cheese for Potatoes Au Gratin?

When choosing the best cheese for your Potatoes Au Gratin, you want to choose a cheese that has bold flavors. These are some of our suggestions.

  • Sharp Cheddar Cheese
  • Gruyere Cheese
  • Shredded Parmesan Cheese

You should be able to locate gruyere cheese at your local grocery store. But Mozzarella Cheese will work too. We just highly recommend on shredding the cheese yourself for best results.

Pre-shredded cheese contains added ingredients and may not melt as well hunk cheese.

Ingredients needed - potatoes, onion, butter, flour, garlic powder, milk, cheese, pepper and salt

Ingredients:

  • Russet Potatoes peeled and sliced into 1/8” thick slices
  • White Onion thinly sliced
  • Butter
  • All Purpose Flour
  • Garlic Powder
  • Whole Milk
  • Sharp Cheddar Cheese shredded
  • Gruyere Cheese shredded
  • Pepper
  • Salt

How to Make Au Gratin Potatoes:

  • Step 1 – Heat oven and prepare baking dish – Preheat the oven to 400 degrees F. Spray a 2.5 or 3 quart casserole pan with a non-stick cooking spray.
  • Step 2 – Layer potatoes and onions in pan – Layer the potatoes and sliced onions into the casserole dish.  You want to make slanted rows and layer the sliced potatoes on top of each, leaving room in between so the sauce can get into between the potatoes.
  • Step 3 – Melt butter and mix in additional ingredients – Melt the butter in a medium saucepan over medium high heat.  Add the flour and stir until combined.  Then whisk in the milk, garlic powder, salt and pepper.  Cook for 2-3 minutes whisking continuously until the mixture thickens.
Slicing the potatoes and preparing the creamy sauce
  • Step 4 – Stir in Cheeses – Then remove the saucepan from the heat and then immediately stir in the shredded cheeses.
  • Step 5 – Pour cheese over potatoes – Pour the cheese sauce even over the potatoes in the casserole dish making sure that they are all covered with the cheese sauce.
  • Step 6 – Cover and Bake – Cover the casserole dish with foil and bake for 60 minutes.  Then remove the foil and bake for 20-30 minutes until the top of the potatoes are browned and the potatoes are fork tender.
The process of melting the cheese and pouring over the potatoes and baking it
  • Step 7 – Rest, Serve and Enjoy – Let the potatoes sit for 20-30 minutes before serving.  Then top with the fresh parsley and it’s ready to enjoy.
Au gratin potatoes in a casserole dish

What kind of Potatoes are best?

This recipe calls for russet potatoes but you can use other types of potatoes. We just recommend slicing the potatoes about the same size so they cook evenly. Here are our recommendations for the potatoes to use.

  • Russet Potatoes
  • Red Skinned Potatoes
  • Yellow Gold Potatoes
  • Baking Potatoes

We peeled our potatoes before placing into the casserole dish, but if you use the red skinned potatoes or the yellow gold you may prefer to leave the skin on.

Au gratin potatoes on a plate

Scalloped Potatoes vs Potatoes Au Gratin:

Scalloped Potatoes and Potatoes Au Gratin are both potato dishes. They are very similar and some may think there really is not a difference.

The only real difference is the cheese and maybe even the toppings. Au gratin is baked in a creamy cheesy sauce where scalloped potatoes has layers of cheese within the potatoes.

This recipe is often called scalloped potatoes but with cheese. We love them both and the recipes are very similar so call it what you prefer.

What to Serve with Au Gratin Potatoes:

This Au Gratin Potatoes side dish is a classic that we serve every holiday. I have even made it throughout the year as it is so easy to make. It also pairs well with any type of meat.

  • Roasted Turkey
  • Crock Pot Ham
  • Steak
  • Pork Chops
  • Grilled Chicken
Au gratin potatoes on a plate

Substitutions and Additions:

  • Cheese – You can easily substitute the cheese to what you prefer or have on hand. Pepper Jack cheese would be a good addition as it would add a little spice.
  • Add Meats – Feel free to add in some diced ham or shredded chicken. If you add in meats this could easily be served as a main dish.
  • Seasoning – We used simple seasoning in this recipe. Feel free to change or add an additional flavors.
  • Milk – Heavy cream could be an easy substitute for milk. The sauce would be creamier and hearty.

Tips for Creamy Au Gratin Potatoes:

  • Cheese – When preparing your ingredients, make sure to shred your cheese from hunk cheese. Pre-shredded cheese has added ingredients that are not necessary. The cheese melts and taste better when you shred it yourself.
  • Potatoes – Make sure to cut the potatoes about the same size. This allows for the side dish to cook evenly.
  • Tender Potatoes – If you prefer, you can softened the potatoes before placing in the casserole dish. Just heat them up in the microwave and then place in the baking dish.
  • Sauce to thin – If you feel like your cheesy sauce it to thin or the dish seems to watery, you may need to use heavy cream instead of milk. Using heavy results in a thicker sauce.
  • Baking Casserole – Bake the casserole covered for about 60 minutes. Then remove the foil and continue baking for about 20 minutes or potatoes are tender. You can even add more cheese to the top to get the top golden brown.
Au gratin potatoes with a serving on a fork

Make Potatoes Au Gratin in Advance:

This is the perfect side dish to make ahead of time. Christmas day we are really busy with preparing dishes and this is one that I can prepare the night before and easily bake the next day.

Make sure to prepare as directed and then cover and place in the fridge. Covering the potatoes in the cheese will prevent the potatoes from browning.

How to Store Leftovers and Reheat:

We always have a lot of leftovers after making Christmas dinner. This side dish can easily be stored in an air tight container to enjoy up to 4 days. We actually think it taste better the next day.

When you are ready to serve, place on a microwave safe dish and reheat in 30 second intervals. You can even place back in a casserole dish and reheat in the oven.

Reheating in the oven prevents the potatoes to have cold and hot spots.

Print Recipe here for Potatoes Au Gratin:

Potatoes Au Gratin

4.50 from 4 votes
Augratin Potatoes is a cheesy side dish that is perfect to serve with your Christmas dinner. Easy ingredients makes this dish simple to make.
Prep Time 15 minutes
Cook Time 1 hour 30 minutes
Let Sit 30 minutes
Total Time 2 hours 15 minutes
Servings 8
Cuisine American
Course Side Dish
Calories 336

Ingredients

  • 3 pounds Russet Potatoes peeled and sliced into 1/8” thick slices
  • 1 White Onion thinly sliced
  • 1/4 cup Butter
  • 1/4 cup All Purpose Flour
  • 1/2 tsp Garlic Powder
  • 2 cups Whole Milk
  • 1 cup Sharp Cheddar Cheese shredded
  • 1/2 cup Gruyere Cheese shredded
  • 1/2 tsp Pepper
  • 1 tsp Salt
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Instructions

  • Preheat the oven to 400 degrees F. Spray a 2.5 or 3 quart casserole pan with a non-stick cooking spray.
  • Layer the potatoes and sliced onions into the casserole dish.  You want to make slanted rows and layer the sliced potatoes on top of each, leaving room in between so the sauce can get into between the potatoes.
  • Melt the butter in a medium saucepan over medium high heat.  Add the flour and stir until combined.  Then whisk in the milk, garlic powder, salt and pepper.  Cook for 2-3 minutes whisking continuously until the mixture thickens.
  • Then remove the saucepan from the heat and then immediately stir in the shredded cheeses.
  • Pour the cheese sauce even over the potatoes in the casserole dish making sure that they are all covered with the cheese sauce.
  • Cover the casserole dish with foil and bake for 60 minutes.  Then remove the foil and bake for 20-30 minutes until the top of the potatoes are browned and the potatoes are fork tender.
  • Let the potatoes sit for 20-30 minutes before serving.  Then top with the fresh parsley and it’s ready to enjoy!

Nutrition Facts

Calories 336kcal, Carbohydrates 38g, Protein 12g, Fat 15g, Saturated Fat 9g, Polyunsaturated Fat 1g, Monounsaturated Fat 4g, Trans Fat 0.2g, Cholesterol 47mg, Sodium 418mg, Potassium 856mg, Fiber 3g, Sugar 5g, Vitamin A 499IU, Vitamin C 11mg, Calcium 287mg, Iron 2mg

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Augratin Potatoes is a cheesy side dish that is perfect to serve with your Christmas dinner. Easy ingredients makes this dish simple to make. This casserole dish is made with thinly slice potatoes, onions and a creamy sauce is poured over to make a cheesy casserole recipe. #christmasonadime #augratinpotatoes #augratin

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Hi! We are Carrie and Christina! Welcome to Christmas on a Dime!

We  are sisters and love everything about Christmas. We are here to help you celebrate the magic of Christmas all year long!

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