I make these cheesy scalloped potatoes every year on Thanksgiving, and I'll never go back to mashed potatoes

half baked harvest scalloped potatoes
The finished scalloped potatoes. Erin McDowell/Business Insider
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  • I grew up eating mashed potatoes yearly on Thanksgiving but secretly preferred scalloped potatoes.
  • We've made these cheesy scalloped potatoes, and skipped the mashed, for three years now.
  • The crispy cheese crust and creamy layers of potato make this one of my favorite recipes.

I've never been a fan of huge mashed potatoes on Thanksgiving or any other day.

Shirking what many would call a Thanksgiving staple, I've made scalloped potatoes — or potatoes au gratin — for the past three years instead. Thanksgiving purists may not believe me, but the texture and flavor are far superior to even the best mashed-potato recipe. Plus, with the average 10-person Thanksgiving meal costing $61.17 this year, according to a recent WalletHub report, I want to make every dish count. 

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I've followed several different recipes, but Half Baked Harvest, run by cookbook author Tieghan Gerard, has a recipe for cheesy scalloped potatoes with caramelized onions that has become a go-to on practically every holiday.

Here's how to make it yourself.

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I started by preheating the oven to 350 degrees and thinly slicing about six yellow-gold potatoes.

half baked harvest scalloped potatoes
The sliced potatoes. Erin McDowell/Business Insider

The recipe recommends either russet or Yukon gold potatoes, but I opted for gold potatoes. 

You can find the full Half Baked Harvest recipe and ingredient list here.

After thinly slicing up a small yellow onion, I added 2 tablespoons of butter and the onions to a cast-iron pan.

half baked harvest scalloped potatoes
The onions cooking in a pan. Erin McDowell/Business Insider

I cooked the onions on medium-high heat until they became golden brown and caramelized. 

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After about 10 minutes of cooking, and stirring frequently, I added a quarter cup of dry white wine to the pan.

half baked harvest scalloped potatoes
The caramelized onions. Erin McDowell/Business Insider

The wine helped to speed up the caramelization of the onions and created a heavenly scent in my kitchen.

Then I tossed in a clove of sliced garlic and a tablespoon of chopped fresh thyme.

half baked harvest scalloped potatoes
The caramelized onions. Erin McDowell/Business Insider

I cooked the garlic, thyme, and caramelized onions together for two more minutes before removing the pan from the heat.

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Next, I greased a 9x13-inch baking dish with butter and set it aside.

half baked harvest scalloped potatoes
The buttered baking dish. Erin McDowell/Business Insider

The butter ensures that your scalloped potatoes won't stick to the pan, of course.

I started assembling the scalloped potatoes by pouring a third of the milk mixture into the bottom of the pan.

half baked harvest scalloped potatoes
A thin layer of the milk mixture in the baking dish. Erin McDowell/Business Insider

The milk mix is made with 2 cups of heavy cream, 1 cup of whole milk, a pinch of cayenne, salt, pepper, and a 3/4 cup of shredded Gruyere cheese. 

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I followed the recipe's instructions on how to layer the potatoes, onions, and milk mix.

half baked harvest scalloped potatoes
The layered potatoes, milk mixture, cheese, and caramelized onions in the pan. Erin McDowell/Business Insider

The first layer of potatoes should use up a third of the sliced potatoes, topped with half of the caramelized onions and garlic. Then, I added another third of the milk mix, then another third of the potatoes, followed by the remaining onions.

I then placed the remaining potatoes in an even layer and poured the remaining mixture over the top. 

I covered the dish in foil and cooked it in the oven for two hours.

half baked harvest scalloped potatoes
The scalloped potatoes after two hours in the oven. Erin McDowell/Business Insider

After two hours, the potatoes were almost done cooking and the milk mixture was bubbling.

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I finished the scalloped potatoes by layering about a cup of shredded cheddar cheese over the top and popping it back into the oven.

half baked harvest scalloped potatoes
The scalloped potatoes with a layer of cheddar cheese on top. Erin McDowell/Business Insider

You can grate your own cheddar or Gruyere cheese for this recipe, or opt for store-bought, already-shredded cheese to make Thanksgiving day even easier. 

After another 20 minutes uncovered in the oven, the potatoes had a deep golden crust over the top. I wish you could smell this dish.

half baked harvest scalloped potatoes
The finished scalloped potatoes. Erin McDowell/Business Insider

I topped the finished scalloped potatoes with another tablespoon of fresh thyme.

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These potatoes were a major hit with my roommates, and we all agreed they were better than any mashed potatoes we've ever had.

half baked harvest scalloped potatoes
The finished scalloped potatoes. Erin McDowell/Business Insider

The potatoes had a delicious, savory crust on the top, and the caramelized onions added a lot of dynamic flavor to the dish.

The creamy layers of the potatoes complemented the crispy texture of the crust, creating a perfect balance of texture and flavor — something I've never experienced with grainy or bland mashed potatoes that, frankly, resemble baby food.

While I know some will never agree with my hot take that mashed potatoes have no place on the Thanksgiving dinner table, I'm perfectly content as long as I'm eating these scalloped potatoes.

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