Loaded Sweet Potato Dauphinoise

Name: Loaded Sweet Potato Dauphinoise
Prep time: 15 min
Cook time: 45 min
Total time: 60 min
Ingredients: 1 large sweet potato ((or 2 medium/small)); 1 cup double cream (heavy cream) ((250ml)); 2/3 cup skimmed milk (2%) ((150ml)); 3 cloves garlic - finely chopped; 2 strips bacon (diced and fried); 3 spring onions (scallions) (finely sliced); 4.4 ounces grated cheddar ((125g)); Salt and pepper; Salted butter

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Loaded Sweet Potato Dauphinoise is the ultimate in comfort food. This foolproof recipe is a creamy sweet potato bake, loaded with your favourite things – namely cheese and bacon! This easy side dish recipe will leave you wanting for more.

Top down shot of sweet potato dauphinoise in a glass dish

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It is clearly comfort food season right now, and boy, I have got you covered with this ! Sweet potatoes are cooked in cream for one hearty and showstopping side dish.

These dauphinois sweet potatoes are no boring side dish. Potato slices are layered with cheese, topped with more cheese and finished with chopped scallions and bacon. I mean, eating just doesn’t get much better than this! If you choose to add more bacon and cheese than the recipe calls for, well, I won’t judge you!

With a rich and creamy texture, this is one indulgent side dish that's perfect for Thanksgiving and Christmas.

Close up of baked sweet potato on a spatula

Ingredients

Sweet Potato: Peeled and thinly sliced.
Cream: Use 35% cream for the richest dish.
Milk: Whole milk or 2% is best, but you can use low-fat milk if you prefer.
Garlic: Finely chopped or minced.
Bacon: Diced and pan-fried for a crispy topping. You can omit the bacon to make this a vegetarian side dish.
Green onions: Sliced for the topping.
Cheese: I used cheddar, but Gruyère cheese would also be an excellent choice.

How to make Sweet Potato Dauphinoise

Despite it’s fancy French name, this is actually a pretty simple dish and this foolproof recipe guarantees perfectly cooked and creamy potatoes every single time. The only thing to be mindful of, is that you want to slice the potatoes as thinly as you can. You can use a mandolin or food processor for this if you have one, but a sharp chef's knife will do the job well.

Peel and slice the sweet potatoes.
Place the slices in a bowl with the milk, cream and garlic and let sit.
In an even layer, place the sweet potato slices in a baking dish, sprinkling over some cheese half way through.
Pour over the cream mixture.
Top with cheese, cooked bacon and green onions.
Bake til bubbly and golden brown.

A slice of sweet potato dauphinoise being held towards camera

Frequently Asked Questions

What are Dauphinoise Potatoes?

If you haven’t had dauphinoise potatoes before, my gosh you are missing out! Potatoes are thinly sliced and then baked in a cream and milk mixture. Flavoured with garlic, dauphinoise is an indulgent potato side dish.

What’s the difference between dauphinoise and au gratin?

Dauphinoise and gratin are both French in origin, but where a dauphinoise is potatoes baked in a cream mixture, a gratin is made with pre-cooked potatoes that are is then topped with cheese or breadcrumbs and browned in the oven or under the grill / broiler. Both are delicious, but if I had to choose, it’s team dauphinoise for me!

Can you use regular potatoes?

Sure! The cooking time will be slightly longer (maybe an additional 15 minutes til the potatoes are tender), but otherwise the recipe remains the same. Russet potatoes would work well.

Recipe Variations

You can add some dried herbs to the cream mixture, thyme or rosemary would work really well. A little nutmeg would also be a great addition.

Make Ahead and Storage

The beauty about this creamy sweet potato dish, is that you can easily make it ahead of time and just bake them before you are ready to serve. Make up the dish, cover and place in the fridge til you are ready to cook.

Leftovers can be placed in an airtight container and refrigerated for 2 to 3 days. Simply reheat at 160ºc / 320ºf for 15minutes until heated through.

Close up of sweet potato bake in a glass dish

Serving Suggestions

This sweet potato dauphinois recipe is great to serve up with roasted mets, and is a perfect accompaniment to your Thanksgiving or Christmas dinner. Try it with some of these favorite mains:

I am a huge lover of sweet potato, super versatile and they add a beautiful natural sweetness to dishes. They are also lower in carbs than regular potatoes, so win win! This sweet potato dauphinoise has been a favorite in our house for years!

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