Potatoes Au Gratin – Spend With Pennies

April 8, 2025

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Potatoes au gratin are a straightforward tacky method to make potatoes. Layers of potatoes and onions are baked in a wealthy tacky sauce till bubbly.

Taste: Potatoes au gratin are a straightforward tacky model of scalloped potatoes. They’ve obtained a cheese sauce whereas scalloped potatoes have a white sauce.
Talent degree: This recipe has a number of steps, together with slicing the potatoes and making a home made cheese sauce. It isn’t troublesome, however it does take time.
Prep observe:
Really helpful instruments: To save lots of a whole lot of time on prep and and make even skinny slices, use a mandoline.
Finances tip: Any number of cheese can be utilized; make sure you’re utilizing a daring flavored cheese.
Time-Saving Tip: If you happen to’re brief on time, verify the recipe notes to cut back cooking time.

Ingredient Ideas for Potatoes au Gratin

Selecting Potatoes: The greatest potatoes for potatoes au gratin are waxy potatoes like red-skinned or Yukon gold. They maintain their form properly, and since they’re thin-skinned, they don’t require peeling (additional bonus!).
- Word: Whereas russet potatoes or baking potatoes will work and style good on this recipe, they’re extra starchy and will disintegrate as soon as cooked—they’re greatest saved for mashed potatoes.
Onion: Thinly sliced onion provides taste. For a milder onion taste, prepare dinner it in butter earlier than layering or exchange sliced onion with 1 teaspoon of onion powder within the sauce.
Cheese: Use cheese with of daring taste on this recipe—I exploit cheddar, parmesan, and Gruyere.
- Possibility: Gruyère cheese might be changed with provolone or Swiss for the same taste.
Sauce: Made with butter, flour, and milk, this roux-based sauce is completed with shredded cheese.

a skillet with butter making cheese sauce for au gratin potatoes

Adding milk to potatoes au gratin sauce in a skillet

The right way to Make Potatoes Au Gratin

Here’s a fast overview of the steps for potatoes au gratin.

Prep: Thinly slice the potatoes and onions.
Sauce: Make the cheese sauce in a saucepan on the range.
Assemble: Stack the potato slices and onions in little piles after which stand them on their sides within the casserole dish.
Bake: Bake till the potatoes are tender and the sauce is bubbly.

Discover the full detailed recipe beneath.

A small stack of sliced potatoes and onions for potatoes au gratin

Pre-shredded cheese will work on this recipe, nevertheless, the sauce will likely be smoother should you shred cheese from a block.
If swapping the cheese, be sure to use these with daring flavors.
If you happen to’re brief on time, set the potatoes and onions within the dish as directed and canopy with plastic wrap. Microwave on full energy for about 10 minutes (will probably be sizzling when eradicating the plastic wrap). Add the cheese sauce and bake as directed beneath for about 45-55 minutes. Simply as scrumptious… however just a little bit faster!

The right way to Make Potatoes au Gratin Forward of Time

This dish might be made 24 hours upfront. Make sure the potatoes are utterly lined within the sauce—any uncovered bits of potatoes will discolor barely. Cowl tightly with plastic wrap and refrigerate.

Take away from the fridge at the least half-hour earlier than baking. It’s possible you’ll want so as to add 10 to twenty minutes to the baking time.

Whereas we regularly eat these as a aspect, I generally make Potatoes au Gratin with ham by together with slices or diced leftover ham (from our favourite crock pot ham) earlier than baking.

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Potatoes Au Gratin

Tender potato and onion slices are layered and baked in a wealthy and scrumptious cheese sauce.

Prep Time 20 minutes

Cook dinner Time 1 hour 30 minutes

Complete Time 1 hour 50 minutes

Cook dinner ModeForestall your display from going darkish

Preheat oven to 400°F.
Wash potatoes and slice into ⅛” skinny slices. Slice onion as skinny as attainable.
Season the potatoes and onions with ½ teaspoon of salt and ¼ teaspoon of pepper. Toss properly to evenly coat. Layer potatoes and onions into little stacks. Place stacks on their aspect in a greased 2.5qt to 3qt casserole dish.
Soften butter and flour in a saucepan and prepare dinner 2 to three minutes. Add mustard powder, ¼ teaspoon salt, ¼ teaspoon pepper and milk. Whisk over medium warmth till thick and bubbly. Take away from warmth and stir in cheeses till melted.
Pour the cheese sauce over the potatoes, gently separating them to permit the sauce to seep between the layers. Cowl with foil (sprayed with cooking spray) and bake 60 minutes.
Take away foil and bake an extra 20 to half-hour or till frivolously browned and potatoes are cooked. Cool quarter-hour earlier than serving.

Slice potatoes as thinly as attainable.
Shred your individual cheese from a block for the very best outcomes. Recent herbs (resembling thyme or rosemary) and garlic might be added to the sauce if desired.
To cut back baking time, wrap casserole dish in plastic wrap earlier than including the cheese sauce and microwave on full energy for about 10 minutes (watch out, will probably be sizzling when eradicating the plastic wrap). Add the cheese sauce and bake as directed for about 45-55 minutes.
Extra cheese (cheddar or parmesan) might be sprinkled on prime as soon as the foil is eliminated if desired.
Retailer leftovers in an hermetic container for as much as 4 days. Reheat within the oven or the microwave.

Diet data supplied is an estimate and can differ primarily based on cooking strategies and types of elements used.

Course Aspect Dish

Delicacies American, French

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