Quick Recipe Version (TL;DR)
Quick Ingredients
- 1 1/4 cups (150 g) all-purpose flour
- 1 tbsp sugar + 1/2 tsp salt
- 8 tbsp (113 g) cold unsalted butter
- 3–5 tbsp ice water
- 2 large–medium orange sweet potatoes (to yield 2 cups mashed)
- 3 large eggs
- 3/4 cup (150 g) sugar + 1/4 cup (55 g) light brown sugar
- 1/2 cup (120 ml) heavy cream
- 1/2 cup (120 ml) evaporated milk or whole milk
- 2 tbsp (28 g) melted butter
- 2 tsp vanilla extract
- 1 1/2 tsp ground cinnamon, 1/2 tsp nutmeg, 1/2 tsp ginger, 1/4 tsp allspice
- 1/2 tsp fine salt
Do This
- 1. Roast whole sweet potatoes at 400°F (200°C) for 45–60 minutes until very tender; cool, peel, and mash 2 cups.
- 2. Make crust: pulse flour, sugar, and salt; cut in cold butter; add ice water just until dough holds; chill 1 hour.
- 3. Roll dough into a 12-inch circle, fit into a 9-inch pie dish, crimp edges; chill 20 minutes.
- 4. Blind-bake crust at 400°F (200°C) with pie weights 15 minutes; remove weights and bake 8–10 minutes more until just golden. Reduce oven to 350°F (175°C).
- 5. Blend mashed sweet potato with sugars, spices, and salt until smooth; beat in eggs, then cream, milk, vanilla, and melted butter until silky and slightly airy.
- 6. Pour filling into warm crust; bake at 350°F (175°C) for 40–50 minutes until edges are set and center has a soft jiggle. Cool completely, then chill before slicing.
Why You’ll Love This Recipe
- Creamy, custardy filling that bakes up gently puffed and almost soufflé-like, then settles into a silky slice.
- Deep, cozy spice flavor from cinnamon, nutmeg, ginger, and allspice without overwhelming the sweet potato.
- Flaky, buttery crust that stays crisp thanks to blind-baking before the custard goes in.
- Perfect make-ahead holiday dessert: bake the day before and chill for stress-free serving.
Grocery List
- Produce: 2–3 orange-fleshed sweet potatoes (Garnet or Jewel), optional orange or lemon (zest) for variation
- Dairy: Unsalted butter, heavy cream, evaporated milk or whole milk, 3 large eggs, optional whipped cream for serving
- Pantry: All-purpose flour, granulated sugar, light brown sugar, vanilla extract, ground cinnamon, ground nutmeg, ground ginger, ground allspice, fine salt, optional bourbon or maple syrup for variations
Full Ingredients
Flaky Pie Crust (9-inch)
- 1 1/4 cups (150 g) all-purpose flour
- 1 tbsp granulated sugar
- 1/2 tsp fine sea salt
- 8 tbsp (1 stick / 113 g) cold unsalted butter, cut into small cubes
- 3–5 tbsp ice water (start with 3 tbsp and add more as needed)
Creamy Spiced Sweet Potato Custard
- 2 cups (about 450 g) mashed roasted sweet potato, very smooth and still slightly warm (from 2 large or 3 medium orange sweet potatoes)
- 3 large eggs, at room temperature
- 3/4 cup (150 g) granulated sugar
- 1/4 cup (55 g) packed light brown sugar
- 1/2 cup (120 ml) heavy cream, at room temperature
- 1/2 cup (120 ml) evaporated milk or whole milk, at room temperature
- 2 tbsp (28 g) unsalted butter, melted and slightly cooled
- 2 tsp pure vanilla extract
- 1 1/2 tsp ground cinnamon
- 1/2 tsp ground nutmeg (freshly grated if possible)
- 1/2 tsp ground ginger
- 1/4 tsp ground allspice or cloves
- 1/2 tsp fine sea salt
To Serve (Optional)
- Lightly sweetened whipped cream
- Freshly grated nutmeg or a pinch of cinnamon for garnish
Step-by-Step Instructions
Step 1: Roast the sweet potatoes for maximum flavor
Preheat your oven to 400°F (200°C). Line a baking sheet with foil or parchment for easy cleanup. Scrub the sweet potatoes well and dry them; there is no need to peel. Pierce each sweet potato several times with a fork to let steam escape.
Place the sweet potatoes on the prepared baking sheet and roast for 45–60 minutes, turning once, until they are very tender and a knife slides through with no resistance. The skins may darken and caramelize slightly; this is good and builds flavor.
Remove from the oven and let cool until you can handle them comfortably, about 15–20 minutes. Peel off the skins and measure out 2 cups (about 450 g) of flesh. Mash very thoroughly or, for an ultra-smooth custard, press through a sieve or blend in a food processor. Set aside; the potatoes should be warm but not hot when you mix the custard.
Step 2: Make and chill the flaky pie crust
While the sweet potatoes roast, prepare the crust. In a medium bowl, whisk together the flour, sugar, and salt. Add the cold, cubed butter and cut it into the flour using a pastry cutter or your fingertips until the mixture looks like coarse crumbs with some pea-sized butter pieces remaining. Work quickly so the butter stays cold.
Sprinkle in 3 tbsp of ice water and toss gently with a fork until the dough starts to come together. If it still looks dry or crumbly, add up to 2 tbsp more ice water, 1 tbsp at a time, just until the dough holds together when pressed. Gather into a disk, wrap tightly in plastic wrap, and chill for at least 1 hour (or up to 2 days). Chilling relaxes the gluten and keeps the crust flaky.
Step 3: Roll out and blind-bake the crust
On a lightly floured surface, roll the chilled dough into a 12-inch (30 cm) circle, about 1/8-inch (3 mm) thick. Work from the center out, rotating the dough frequently and dusting lightly with flour as needed to prevent sticking. Gently transfer the dough to a 9-inch pie dish, easing it into the corners without stretching.
Trim the overhang to about 1 inch (2.5 cm), fold it under, and crimp the edges decoratively. Prick the base of the crust lightly with a fork. Place the pie dish in the refrigerator for 20–30 minutes while you preheat the oven to 400°F (200°C). Cold dough hits hot oven for best flake.
Line the chilled crust with parchment paper or foil and fill with pie weights or dried beans. Bake for 15 minutes. Carefully remove the parchment and weights, then return the crust to the oven for another 8–10 minutes, until the bottom looks dry and just lightly golden. Take the crust out and reduce the oven temperature to 350°F (175°C). Let the crust cool slightly while you make the filling.
Step 4: Mix the smooth, soufflé-like sweet potato custard
In a large bowl (or in the bowl of a stand mixer), whisk the warm mashed sweet potato with the granulated sugar, brown sugar, cinnamon, nutmeg, ginger, allspice, and salt until very smooth and well combined. The warmth of the potatoes helps dissolve the sugar and spices for a silky texture.
Add the eggs and beat with a whisk or mixer on medium speed for 1–2 minutes, until the mixture lightens slightly in color and looks a bit airy. This gentle aeration helps give the baked custard its subtle soufflé-like lift.
Whisk in the heavy cream, evaporated milk (or whole milk), vanilla, and finally the melted butter, mixing until the custard is completely smooth and velvety. If you want an ultra-luxurious texture, pour the filling through a fine-mesh sieve into a clean bowl, pressing it through with a spatula.
Step 5: Fill the crust and bake the pie
Place the pre-baked crust on a rimmed baking sheet to make it easier to move in and out of the oven. Pour the sweet potato custard into the warm crust, smoothing the top with a spatula if needed. The filling should come close to the top but not overflow.
Bake at 350°F (175°C) for 40–50 minutes. The pie is done when the edges are set and slightly puffed, and the very center still has a soft, gentle jiggle when you nudge the pan. If you have an instant-read thermometer, the center should register about 175°F (80°C). If the crust edges brown too quickly, cover them loosely with a ring of foil.
As it bakes, the custard will rise slightly and look softly domed, almost like a soufflé. It will settle as it cools—that is exactly what you want for a tender, creamy slice.
Step 6: Cool, chill, and slice cleanly
Remove the pie from the oven and place it on a wire rack. Cool completely at room temperature, at least 2 hours. This slow, gentle cooling finishes the custard’s set and keeps the texture smooth instead of grainy.
Once it reaches room temperature, transfer the pie to the refrigerator and chill for at least 2 hours (or up to 24 hours) before slicing. Chilling helps the custard firm up enough for neat slices while staying plush and creamy inside.
To serve, cut with a sharp, thin knife, wiping the blade clean between slices. Top each piece with a dollop of lightly sweetened whipped cream and a whisper of freshly grated nutmeg or cinnamon if you like.
Pro Tips
- Use roasted, not boiled, sweet potatoes. Roasting concentrates flavor and sweetness and avoids excess moisture that can make the custard watery.
- Keep everything cold for a flaky crust. Cold butter and a well-chilled dough going into a hot oven are the keys to those tender, crisp layers.
- Blend the filling very smooth. Warm potatoes plus a vigorous whisk (or mixer) and, if desired, a quick pass through a sieve create that luxurious, almost soufflé-like texture.
- Do not overbake. Pull the pie when the center still has a soft wobble. It will continue to set as it cools and stay creamy instead of turning dry.
- Protect the crust edges. Keep a foil ring or pie shield handy so the edges do not overbrown while the custard finishes baking.
Variations
- Maple Sweet Potato Pie: Replace 1/4 cup (50 g) of the granulated sugar with 1/4 cup (60 ml) pure maple syrup. Reduce the evaporated milk by 2 tbsp to keep the custard balanced.
- Coconut Sweet Potato Pie: Substitute full-fat canned coconut milk for the evaporated milk and add 1/4 cup (20 g) unsweetened shredded coconut to the filling.
- Bourbon-Spiked Sweet Potato Pie: Add 1–2 tbsp good-quality bourbon along with the vanilla. The gentle warmth pairs beautifully with the spices.
Storage & Make-Ahead
Sweet potato pie is ideal for making ahead. Once fully cooled, cover the pie loosely with plastic wrap or foil and refrigerate for up to 3–4 days. For best texture, serve chilled or let it sit at room temperature for 20–30 minutes before serving. To freeze, wrap the cooled pie tightly in plastic wrap and then in foil, and freeze for up to 2 months. Thaw overnight in the refrigerator, then slice and serve. Leftover slices should always be stored in the fridge.
Nutrition (per serving)
Approximate values for one of 8 slices: about 430 calories; 22 g fat; 13 g saturated fat; 54 g carbohydrates; 3 g fiber; 27 g sugar; 6 g protein; 260 mg sodium. Values will vary based on specific ingredients and toppings used.
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