Large non-stick or cast-iron skillet with a lid Crucial for even cooking on the stovetop. A stainless steel pan works too, but you may need to stir more often to prevent sticking.
Mandoline slicer Not essential, but a big time-saver for getting uniform potato slices. A sharp chef’s knife will also do the job.
Silicone spatula or wooden spoon Ideal for stirring without scratching your pan.
Lid or foil To trap steam and help the potatoes cook evenly without drying out.
Ingredients
4medium Yukon Gold potatoesthinly sliced (skin on or off, your choice)
2tablespoonsunsalted butter
2clovesgarlicminced
1cupheavy cream
1cupwhole milk
1 ½cupsshredded sharp cheddar cheese
½cupgrated Parmesan cheese
1teaspoonsalt
½teaspoonblack pepper
¼teaspoonsmoked paprikaoptional, for a little kick
1teaspoonDijon mustardhelps amplify that cheesy tang
Fresh parsleychopped (for garnish)
Instructions
Prep the potatoes
Wash and slice the potatoes into ⅛-inch thick rounds. Keep them as even as possible for uniform cooking.
Make the cheese sauce
In a large skillet over medium heat, melt the butter and sauté the garlic for about 1 minute until fragrant. Pour in the cream and milk, then stir in the salt, pepper, mustard, and smoked paprika. Let it come to a gentle simmer.
Add the cheese
Stir in the cheddar and Parmesan until the sauce is smooth and creamy. This is your luscious, creamy cheese base for the au gratin.
Layer the potatoes
Add the sliced potatoes into the sauce, gently stirring to coat each piece. Flatten them down with a spoon so they’re mostly submerged in the cheesy mixture.
Simmer and cover
Reduce the heat to low, cover the skillet, and let it cook for about 20 minutes. Stir once or twice to ensure nothing’s sticking and the sauce isn’t burning.
Finish uncovered
Remove the lid and let it simmer another 5 minutes to thicken up. The sauce will reduce slightly and cling to the tender potatoes beautifully.
Garnish and serve
Sprinkle with fresh parsley and serve hot. Bonus points if you hit it with a little more shredded cheese before serving for extra melty magic.