Dairy-Free Dauphinoise Potatoes: A Creamy Vegan Gratin

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Dauphinoise potatoes, or gratin dauphinois, is a traditional dish from the Dauphiné region in southeast France that is similar to scalloped potatoes. But unlike our Americanized versions, they use crème fraîche rather than copious amounts of cheese. To make dairy-free dauphinoise potatoes, this recipe uses a quick creamy sauce made from cashews. It’s a wonderful comforting dish for the cooler months or for the holidays.

Dairy-Free Dauphinoise Potatoes Recipe - a naturally vegan, soy-free, gluten-free dish based on a French classic

Raw cashews are actually quite soft and blend easily, but I still recommend pre-grinding them, particularly if you don’t have a high-power blender.You can pre-soak the nuts to soften them (1 to 2 hours), but this will produce a slightly thinner sauce for your dairy-free dauphinoise potatoes. Dry cashews will soak up liquid from your sauce as it cooks, but pre-soaked ones are already quite saturated.

I also highly recommend using a mandolin to prepare the potatoes. The one I use was very inexpensive, and it makes very quick work of the slicing process.

Dairy-Free Dauphinoise Potatoes Recipe - a naturally vegan, soy-free, gluten-free dish based on a French classic

Special Diet Notes: Dairy-Free Dauphinoise Potatoes

By ingredients, this recipe is dairy-free / non-dairy, egg-free, gluten-free, grain-free, peanut-free, soy-free, vegan / plant-based, and vegetarian.

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Dairy Free Dauphinoise Potatoes
 
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Serves: 6 servings
Ingredients
Instructions
  1. Preheat your oven to 375ºF.
  2. Slice the potatoes very thin. A mandolin is very helpful here (I use this one).
  3. Spread the potatoes evenly in a 7x11-inch baking dish or oven-safe skillet.
  4. Place the cashews in your blender and add half of the water. Blend until smooth. Add the remaining water, starch, onion flakes, salt, and cayenne (if using. Blend until smooth.
  5. Pour the cream over the sliced potatoes, and lightly sprinkle the potatoes paprika.
  6. Bake for 1 hour or until the potatoes are fork tender and appear crispy on top.
Notes
Potatoes: I think small to medium-sized Russets or large Yukon Gold are the best potatoes to use for dairy-free dauphinoise potatoes.

Cashew Tip: To avoid chunks of cashew, I recommend grinding the cashews into a powder in a spice grinder before adding them to the blender. This only takes a minute.

Key Pantry Supplies: Dairy-Free Dauphinoise Potatoes

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About Author

Alisa is the founder of GoDairyFree.org, Food Editor for Allergic Living magazine, and author of the best-selling dairy-free book, Go Dairy Free: The Guide and Cookbook for Milk Allergies, Lactose Intolerance, and Casein-Free Living, and the new cookbook, Eat Dairy Free: Your Essential Cookbook for Everyday Meals, Snacks, and Sweets. Alisa is also a professional recipe creator and product ambassador for the natural food industry.

7 Comments

  1. Seriously love everything about these creamy potatoes! And it looks so easy to make. I might have just found what I’m taking to Christmas dinner! 🙂

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