Au Gratin Potatoes
- Prep Time: 30 minutes
- Cook Time: 1 hour - 1 hour 10 minutes
- Servings: 9
- Course: Side Dish
Thinly sliced potatoes and onion are layered in a creamy cheese sauce creating the perfect au gratin potato recipe.
Reynolds Kitchens® Tips
Reynolds Kitchens tip
Bake these cheesy au gratin potatoes in a bakeware pan for non-stick serving.
Ingredients
- 1 small diced yellow onion
- 4 peeled and thinly sliced russet potatoes
- 2 tablespoons of unsalted butter
- 3 tablespoons of flour
- 2 1/2 cups of milk
- 2 ounces of shredded Mozzarella cheese
- 1 cup of breadcrumbs
- Kosher salt and fresh cracked pepper to taste
Directions
Step 1
PREHEAT the oven to 375°
Step 2
HEAT a medium sized pot on medium heat and add in 1 teaspoon of butter along with the diced yellow onion.
Step 3
COOK the onions until they become brown. Once brown, add in the remaining amount of butter and melt.
Step 4
ADD the flour to the pot and mix until it is combined to form a roux.
Step 5
POUR in the milk and bring it to a boil while occasionally whisking until it becomes very thick, similar to Alfredo sauce.
Step 6
WHISK in the Mozzarella cheese until it is melted and finish with salt and pepper.
Step 7
PLACE the sliced potatoes in a large bowl and pour on the thick cheese sauce and stir until combined.
Step 8
TRANSFER the potatoes and cream to a Reynolds® Bakeware Casserole pan.
Step 9
SPRINKLE on the breadcrumbs to cover the top of the potatoes.
Step 10
BAKE the potatoes on 375° for 60 minutes or until golden brown on top and the potatoes are soft.
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