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How to Make the Au Gratin Potato Recipe

The au gratin potato recipe is certain to become one of the frequently cooked meals at your home. The recipe is actually very simple and the depth of flavors is the result of a mixture of kitchen spices and some peppers.

The au gratin recipe is a step above the usual potato dishes. It can be classy enough for special occasion or for a normal dinner as well.

Many get confused wondering what is the difference between scalloped potatoes and au gratin recipes, because they are very similar. Well, the gratin recipes are practically always topped with bread crumbs and grated cheese. The scalloped potatoes are referred to as a very creamy sliced potatoes dish based on milk and butter but now almost everyone adds cheese to them. 

Preparation Time: 10 minutes

Cooking Time: around 1 hour

Servings: 8


  • 1 cup grated Romano or Parmesan cheese
  • 1/3 cup natural butter spread or regular butter
  • 1/3 level cup all-purpose flour
  • 1 cup heavy cream
  • 1 can cream of potato soup
  • 1 tsp finely diced jalapeno (with seeds removed)
  • 1 1/2 tsp finely rosemary (minced)
  • 1/8 tsp thyme
  • 1-2 cloves fresh garlic (minced)
  • 1 tsp of dried parsley
  • 3/4 tsp of sea salt
  • 1/2 tsp white pepper
  • 9 peeled and sliced red potatoes (slices should all have a thickness of about 1/8”)
  • 3/4 cup of bread crumbs


  1. Preheat your oven to 350 degrees Fahrenheit (177°C).

  2. Use low to medium heat to melt the butter in saucepan.

  3. Just as soon as the butter begins to melt you can stir in the jalapeno and allow it to cook for about 2 minutes.

  4. Add the all purpose flour a little at a time, stirring until the mixture has a smooth consistency.

  5. Pour in the cream and then allow the contents of the saucepan to come to a boil while you continue stirring the mixture over medium heat.

  6. Stir in the cream of potato soup and cook for about two minutes. The mixture will begin to thicken and then you can remove the pan from the stove.

  7. Add potatoes and 1/4 cup of the cheese and let the mixture sit for another 1-2 minutes.

  8. Now you can add the garlic, thyme, sea salt, parsley, pepper and fresh rosemary. Make sure that all of the ingredients are stirred together and then pour into a greased casserole dish.

  9. Place the remaining 3/4 cup of cheese on top of the au gratin potato recipe casserole and cover the dish with a glass top. 

  10. Allow the casserole to bake for about 40 to 50 minutes in the preheated oven.

  11. Then you need to remove the cover from the casserole, add the breadcrumbs on top and allow the dish to continue baking for another 15 minutes.

Tips to Keep in Mind:
  • Au gratin recipes are versatile and can be adapted to suit your personal taste and preferences.

  • Red pepper flakes or cayenne can be used instead of the jalapeno.

  • Do not rush the cooking for best results, slow and easy are the key rules to remember.

  • Adjust the spices up or down to please your palate.

  • Small red potatoes will give the best flavor results for the au gratin potato recipe.

  • Panko bread crumbs are the ideal topping choice but regular bread crumbs will also work.

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