This Japanese Sweet Potato Crème Brûlée comes together in just about 45 minutes, and the best part? It’s all done in one pot, making cleanup a breeze! Your family is going to love this creamy, dreamy dessert that takes a comforting classic and gives it an Asian twist.
Ingredient Breakdown
Here’s what you’ll need to whip up this incredible dessert!
2 medium sweet potatoes: Sweet potatoes bring a natural sweetness and creaminess to our dessert. You can also substitute with butternut squash or pumpkin if you’re feeling adventurous!
1 cup heavy cream: A must for that rich and velvety texture.
1/2 cup milk: Adds a lighter creaminess that balances everything out, feel free to use whole or any type of milk you prefer!
4 large egg yolks: These babies are key for that luscious custard texture; don’t skip them!
1/2 cup granulated sugar: This will sweeten everything beautifully, but you could also use brown sugar for a deeper flavor.
1 teaspoon vanilla extract: The flavor boosts in this recipe are spectacular, thanks to vanilla!
1/4 teaspoon salt: Just a couple pinches to enhance the flavors, you’ll be surprised at how much this helps!
Raw sugar for topping: For that classic crispy brûlée topping, seriously, don’t skip this!
Let’s dive into the recipe!
How to Make Japanese Sweet Potato Crème Brûlée
Preheat your oven to 375°F (190°C). While that’s warming up, let’s get our sweet potatoes ready!
Roast the sweet potatoes until tender, about 45 minutes. I like to prick them a couple times with a fork before popping them in the oven. Just wait until they’re soft and sweet-smelling! Let them cool, then peel and mash them up until smooth.
In a saucepan, heat the cream and milk over medium heat until just simmering, stirring occasionally. You’ll want to keep an eye on it, so it doesn’t boil over, oh, the horror!
In a medium bowl, whisk together the egg yolks, granulated sugar, vanilla, and salt until it’s combined and slightly frothy. I love the way it smells as the vanilla starts to get fragrant!
Slowly pour in the warm cream mixture while whisking. This step is crucial, folks! You want to temper the eggs without scrambling them. Just pour a little at a time and keep whisking to avoid any cooked bits.
Stir in the mashed sweet potatoes until smooth. It should be a beautiful golden color, and honestly, it’s a feast for the eyes already!
Pour the mixture into ramekins and place them in a large baking dish. Fill the dish with hot water until it reaches halfway up the sides of the ramekins. This water bath helps the custard cook evenly and gently.
Bake for 30-35 minutes or until just set in the center. The edges should be firm, and the center will have a bit of a jiggle, this means it’s perfectly cooked!
Cool for a bit, and then refrigerate for at least 2 hours (or overnight, if you can stand the wait!).
When you’re ready to serve, sprinkle raw sugar on top of each custard and use a kitchen torch to caramelize it until golden. This part is SO much fun, I mean, who doesn’t love a good torching session?

And voilà! You have a gorgeous dessert that looks super impressive but is surprisingly simple to make!
If you loved this Japanese Sweet Potato Crème Brûlée, be sure to check out my Japanese Clear Soup!
Why This Recipe Works
Quick & Easy
This recipe comes together in under 45 minutes. With minimal steps involved, even a busy weeknight stands a chance to end on a well-loved sweet note!
Comfort Food
Loaded with tons of flavor, this dessert is like a warm hug on a plate. The sweet potatoes give it a rustic depth, while the creamy custard elevates it into a comforting indulgence.
Customizable
One of the things I absolutely love is that you can use whatever ingredients you have. Have some leftover pumpkin? Switch it up! No heavy cream? Use half-and-half! It’s so flexible; the possibilities are endless!
Make-Ahead Friendly
You can make this a day ahead! Just let the crème brûlée chill overnight, and it’ll be ready to go, perfect for gatherings or last-minute guests. And the crispy sugar topping? Seriously, just torch right before serving, easy peasy!

Serving & Storage Tips
How to Serve This Japanese Sweet Potato Crème Brûlée
I like to serve my brûlée with a drizzle of honey or a sprinkle of cinnamon, it just adds that little extra touch that feels so delightful! You can also pair it with some fresh berries for a burst of freshness; it looks so pretty, doesn’t it?
Storage Instructions
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Just be sure to add the sugar topping right before torching!
Reheating Instructions
You really shouldn’t need to reheat this dessert, but if you need to, just let it come to room temperature and use the torch to re-crisp the sugar topping!
Freezer Friendly
While this dessert is best fresh, you can freeze the unbaked custard mixture for up to 2 months. Just let it thaw in the refrigerator overnight before baking it fresh for serving.
There you have it! Your entire family will love this Japanese Sweet Potato Crème Brûlée. It’s sure to become a staple in your dessert rotation!
So what are you waiting for? Gather your ingredients, and let’s get cooking! You won’t regret diving into this incredible treat. Enjoy every bite! And for more recipes, follow us on Pinterest.
Print
Easy Japanese Sweet Potato Crème Brûlée
- Total Time: 45 minutes
- Yield: 4 servings 1x
- Diet: Vegetarian
Description
A delightful dessert that combines sweet potatoes with a creamy crème brûlée topped with a crispy sugar layer.
Ingredients
- 2 medium sweet potatoes
- 1 cup heavy cream
- 1/2 cup milk
- 4 large egg yolks
- 1/2 cup granulated sugar
- 1 teaspoon vanilla extract
- 1/4 teaspoon salt
- Raw sugar for topping
Instructions
- Preheat your oven to 375°F (190°C).
- Roast the sweet potatoes until tender, about 45 minutes.
- In a saucepan, heat the cream and milk over medium heat until just simmering.
- Whisk together the egg yolks, granulated sugar, vanilla, and salt until combined.
- Pour in the warm cream mixture while whisking.
- Stir in the mashed sweet potatoes until smooth.
- Pour the mixture into ramekins and place them in a large baking dish.
- Fill the dish with hot water until halfway up the sides of the ramekins.
- Bake for 30-35 minutes or until just set in the center.
- Cool for a bit, then refrigerate for at least 2 hours.
- Sprinkle raw sugar on top and use a kitchen torch to caramelize it until golden.
Notes
Store leftovers in an airtight container in the refrigerator for up to 3 days. Add sugar topping right before torching.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: Japanese
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 25g
- Sodium: 150mg
- Fat: 20g
- Saturated Fat: 12g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 5g
- Protein: 6g
- Cholesterol: 180mg