Why You’ll Love This Recipe
This dish combines the natural sweetness of sweet potatoes with a velvety, savory cream sauce. It’s easy to prepare yet impressive enough for special occasions. The soft interior and lightly crisp top create a perfect texture contrast, and it pairs beautifully with a wide range of main dishes.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
sweet potatoes
heavy cream
milk
garlic
butter
salt
black pepper
nutmeg
Directions
Preheat your oven to 180°C (350°F).
Peel the sweet potatoes and slice them thinly, ideally using a mandoline for even slices.
In a saucepan, gently heat the cream, milk, minced garlic, salt, pepper, and a pinch of nutmeg. Do not let it boil.
Grease a baking dish with butter. Arrange a layer of sweet potato slices, slightly overlapping.
Pour some of the cream mixture over the layer, then repeat the layering process until all the ingredients are used.
Finish with a final layer of cream and a few small pieces of butter on top.
Cover with foil and bake for 40 minutes.
Remove the foil and continue baking for another 20–25 minutes, until the top is golden and the potatoes are tender when pierced with a knife.
Let it rest for a few minutes before serving.
Servings and timing
Servings: 4–6
Preparation time: 15 minutes
Cooking time: 60–65 minutes
Total time: about 1 hour 20 minutes
Variations
Add grated cheese like Gruyère or Parmesan for a richer, cheesy crust.
Include thinly sliced onions or leeks for added depth of flavor.
Use thyme or rosemary for a fragrant herbal note.
Substitute part of the cream with a plant-based alternative for a lighter version.
Add a pinch of chili flakes for subtle heat.
Storage/Reheating
Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheat in the oven at 170°C (340°F) until warmed through, or microwave individual portions. Cover while reheating to prevent drying out.
FAQs
Can I prepare this dish in advance?
Yes, you can assemble it ahead of time and refrigerate before baking.
Do I need to cook the sweet potatoes first?
No, they will cook fully in the oven with the cream mixture.
Can I make it dairy-free?
Yes, use plant-based cream and milk alternatives.
Why is my dauphinoise watery?
This can happen if the potatoes release excess moisture or the dish isn’t baked long enough.
Can I add cheese?
Yes, cheese is a popular addition for extra richness.
What’s the best way to slice the potatoes?
A mandoline ensures thin, even slices for consistent cooking.
Can I freeze this dish?
It’s possible, but the texture may change slightly after thawing.
How do I know when it’s done?
The potatoes should be tender and the top golden brown.
Can I use regular potatoes instead?
Yes, you can substitute with regular potatoes for a more traditional version.
What dishes pair well with this?
It pairs well with roasted meats, poultry, or a simple green salad.
Conclusion
Sweet potato dauphinoise is a rich and elegant side dish that brings warmth and comfort to any table. With its creamy layers and naturally sweet flavor, it’s a delightful twist on a classic that’s sure to impress.
PrintSweet Potato Dauphinoise
Sweet Potato Dauphinoise is a creamy and comforting twist on the classic gratin, featuring layers of tender sweet potatoes baked in a rich garlic-infused cream. The result is a golden, elegant dish with a perfect balance of sweetness and savory flavor.
- Prep Time: 15 minutes
- Cook Time: 60–65 minutes
- Total Time: about 1 hour 20 minutes
- Yield: 4–6 servings
- Category: Side Dish
- Method: Bake
- Cuisine: French
- Diet: Vegetarian
Ingredients
- sweet potatoes
- heavy cream
- milk
- garlic
- butter
- salt
- black pepper
- nutmeg
Instructions
- Preheat oven to 180°C (350°F).
- Peel and thinly slice sweet potatoes.
- In a saucepan, gently heat cream, milk, garlic, salt, pepper, and nutmeg without boiling.
- Grease a baking dish with butter.
- Layer sweet potato slices, slightly overlapping.
- Pour some cream mixture over the layer.
- Repeat layering until all ingredients are used.
- Finish with a top layer of cream and small pieces of butter.
- Cover with foil and bake for 40 minutes.
- Remove foil and bake for another 20 to 25 minutes until golden and tender.
- Let rest briefly before serving.
Notes
- Use a mandoline for evenly sliced potatoes.
- Add cheese like Gruyère or Parmesan for extra richness.
- Include herbs such as thyme or rosemary for added flavor.
- Store leftovers in the refrigerator for up to 3 days.
- Reheat covered to prevent drying out.
Nutrition
- Serving Size: 1 serving
- Calories: 320 kcal
- Sugar: 7 g
- Sodium: 280 mg
- Fat: 20 g
- Saturated Fat: 12 g
- Unsaturated Fat: 6 g
- Trans Fat: 0 g
- Carbohydrates: 32 g
- Fiber: 4 g
- Protein: 5 g
- Cholesterol: 60 mg
