A sweet potato creme brulee takes the silky baked custard of the French classic and folds in roasted sweet potato for a warmer, earthier note. You get the same glassy caramel top and spoon-soft center, but with a color closer to amber and a flavor that reads like pie filling without the crust. This version uses a water bath and a shallow torch finish so the custard stays smooth instead of curdled.
The recipe below is built for home cooks who already know a standard creme brulee but want a seasonal change. We roast the potatoes first to concentrate their sugar, then blend them into the dairy base so there are no fibrous bits. The result is a dessert that feels familiar yet clearly different on the first bite. If you enjoyed this, our scottish potato scone is worth trying next. Making this sweet potato creme brulee at home is surprisingly straightforward once you know the key steps.
Why You’ll Love These Sweet Potato Creme Brulee
- Roasted sweet potato adds natural sweetness so you use less refined sugar than a plain vanilla version.
- The custard bakes to a just set edges texture that still wobbles softly in the middle.
- A thin torched sugar lid gives the same crack as a restaurant dessert at a fraction of the cost.
- Make them a day ahead; the flavor deepens overnight in the fridge.
Ingredients You’ll Need
- 2 medium sweet potatoes (about 400 g), roasted and flesh scooped out
- 2 cups heavy cream (480 ml)
- 1/2 cup whole milk (120 ml)
- 5 large egg yolks
- 1/3 cup granulated sugar (67 g), plus 4 tsp for topping
- 1 tsp vanilla extract
- 1/4 tsp ground cinnamon
- 1/8 tsp fine sea salt
Ingredient Substitutions
Heavy cream: Replace with an equal volume of half-and-half for a lighter custard. Half-and-half has less fat, so the brulee will set a little looser and the top may not caramelize as darkly under the torch. Bake at the same temperature but check doneness 3 minutes earlier to avoid weeping. The sweet potato creme brulee works well for weeknight cooking when time is limited.
Sweet potatoes: Use an equal weight of roasted butternut squash if sweet potatoes are unavailable. The squash gives a similar orange color and smooth puree but a milder, less malty flavor. You may want to add 1 tbsp more sugar to match the potato’s natural sweetness. Storing leftover sweet potato creme brulee correctly keeps it tasting good for days.
Vanilla extract: Swap for 1/2 split vanilla bean scraped into the cream if you want visible specks. The bean adds a rounder aroma but costs more; steep it in the warm cream for 10 minutes before straining. Skip the extract entirely in that case to avoid doubling the flavor.
Ground cinnamon: Replace with 1/4 tsp grated nutmeg for a more holiday-style profile. Nutmeg is stronger, so keep the amount small or it will mask the potato. The custard will smell more like eggnog than pumpkin pie. For another easy option, check out our potato gnocchi.
Step-by-Step Instructions
- Roast the sweet potatoes at 200°C / 400°F for 40 minutes until a knife slides through with no resistance. Cool, peel, and blend the flesh with the milk until completely smooth.
- Warm the cream, cinnamon, and salt in a saucepan over medium-low heat until steam rises; do not let it boil. Remove from heat and stir in the vanilla and potato puree.
- Whisk the egg yolks and 1/3 cup sugar in a bowl until pale, about 2 minutes. Slowly stream the warm cream mixture into the yolks while whisking to temper them.
- Strain the custard through a fine sieve into a pitcher, then pour into four 6-oz ramekins. Skim any foam so the tops bake flat.
- Set ramekins in a baking dish and pour hot water halfway up their sides. Bake at 160°C / 325°F for 30–35 minutes until the centers barely jiggle when tapped.
- Chill the ramekins uncovered for 1 hour, then covered for at least 3 hours. Sprinkle 1 tsp sugar on each and torch until golden and crispy.
Pro Tips
Strain the base twice if you see any potato fibers; a silky mouthfeel is the whole point of a sweet potato creme brulee. A coarse sieve leaves stringy bits that read as undercooked vegetable.
Use a kitchen torch instead of the broiler so the sugar lid stays thin. Broilers heat unevenly and can bubble the custard before the top browns.
For deeper potato flavor, roast the skins-on potatoes directly on the oven rack. The skin traps moisture so the flesh steams from inside and stays sweet. See custard technique for safe baking temps.
Chill the ramekins fully before sugaring; cold surface helps the crystals melt and reharden into a clean crack. Warm custard makes the sugar sink and turn sticky.
Common Mistakes to Avoid
Skipping the water bath bakes the edges too fast and gives a rubbery ring around a loose center. The gentle heat of a bath keeps the whole custard at an even 160°C / 325°F.
Adding sugar to the yolks after the cream is already hot can scramble them if you pour too fast. Always whisk constantly and add the liquid in a thin stream.
Torching too much sugar makes a thick lid that cracks in chunks instead of shards. One teaspoon per ramekin is enough for a golden and crispy layer. You might also like our twice baked potato.
Serving Suggestions
Serve the brulees cold from the fridge with a few cherry almond fruits on the side for a tart contrast. The bright acidity cuts the rich custard.
A plain basil pesto cracker sounds odd but its herbal bite balances the sweet potato. Use only one small leaf per plate so it reads as garnish, not salad.
Storage and Reheating
Keep unflamed custards in an airtight container for up to 3 days in the fridge. The sugar top should be added right before serving because it softens within hours.
Do not freeze baked brulee; the custard weeps when thawed and the texture turns grainy. If you must hold longer, freeze the raw base for up to 2 months and bake from cold.
Never leave finished desserts out beyond 2 hours since the dairy base sits in the temperature danger zone quickly. Re-chill immediately after the torch if guests linger.
Recipe Variations
Boozy Version
Add 1 tbsp bourbon to the warm cream before straining for a grown-up edge. The alcohol thins the custard slightly, so bake for 2 extra minutes. Expect a warm finish that pairs with the potato’s malt.
Maple Swap
Replace the granulated sugar in the base with an equal amount of maple syrup for a woodsy note. Maple browns faster under the torch, so pull the flame back 2 inches. The top will be darker but still crack clean.
Citrus Twist
Stir 1 tsp orange zest into the potato puree to lift the earthiness. The oils in the zest cut through the cream and make the creme brulee feel lighter. Avoid bottled zest, which tastes dull.
Spiced Latte Style
Add 1/8 tsp ground ginger plus the cinnamon for a latte profile. The ginger adds heat that builds after the sweet first bite. Reduce the salt by half so the spice stays forward.
Sweet Potato Creme Brulee
Description
A sweet potato creme brulee folds roasted sweet potato into a silky French baked custard for a warmer, earthier note with the same glassy caramel top and spoon-soft center.
Ingredients
Instructions
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Roast sweet potatoes
Roast the sweet potatoes at 200°C / 400°F for 40 minutes until a knife slides through with no resistance, showing the flesh is completely tender. Cool the potatoes, peel them, and set the flesh aside for blending.
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Blend potato puree
Cool, peel, and blend the roasted flesh with the 1/2 cup whole milk in a blender until completely smooth with no fibrous bits. This smooth puree ensures a silky custard mouthfeel later.
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Warm cream mixture
Warm the 2 cups heavy cream, 1/4 tsp ground cinnamon, and 1/8 tsp fine sea salt in a saucepan over medium-low heat until steam rises; do not let it boil. Remove from heat and stir in the 1 tsp vanilla extract and the potato puree until fully combined.
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Whisk egg yolks
Whisk the 5 large egg yolks and 1/3 cup granulated sugar in a bowl until pale, about 2 minutes, showing the mixture has lightened in color. This step builds the custard base before tempering.
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Temper custard base
Slowly stream the warm cream mixture into the yolks while whisking constantly to temper them and avoid scrambling. The combined liquid should feel warm but not cooking the eggs, creating a smooth base.
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Strain and fill ramekins
Strain the custard through a fine sieve into a pitcher, then pour into four 6-oz ramekins. Skim any foam so the tops bake flat and even.
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Bake in water bath
Set ramekins in a baking dish and pour hot water halfway up their sides for a gentle bath. Bake at 160°C / 325°F for 30–35 minutes until the centers barely jiggle when tapped, showing just-set edges with a soft wobble.
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Chill custards
Chill the ramekins uncovered for 1 hour, then covered for at least 3 hours so the custard firms fully and flavor deepens. The cold surface also helps the sugar lid crisp later.
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Torch sugar topping
Sprinkle 1 tsp sugar on each cold custard and torch until golden and crispy, forming a thin crackable lid. Use a kitchen torch so the sugar stays thin and the custard beneath remains undisturbed.
Nutrition Facts
Servings 4
- Amount Per Serving
- Calories 380kcal
- % Daily Value *
- Total Fat 28g44%
- Saturated Fat 16g80%
- Cholesterol 240mg80%
- Sodium 180mg8%
- Total Carbohydrate 26g9%
- Dietary Fiber 2g8%
- Sugars 18g
- Protein 6g12%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.
Note
- Storage: Keep unflamed custards in an airtight container for up to 3 days in the fridge; add sugar top right before serving.
- Make ahead: Flavor deepens overnight, so chill covered at least 3 hours or a day ahead; try our potato scones for another make-ahead treat.
- Pro tip: Strain the base twice if you see potato fibers to keep the mouthfeel silky and restaurant-quality.
- Food safety: Never leave finished desserts out beyond 2 hours and re-chill immediately after torching if guests linger.
