Southern Sweet Potato Pie with Silky Spiced Filling

Why You’ll Love This Recipe

• Roasted sweet potatoes build deep, caramelized flavor—no watery filling.
• Silky-smooth custard spiced just right with cinnamon, ginger, and nutmeg.
• Flaky, tender all-butter crust that stays crisp thanks to par-baking.
• Make-ahead friendly for holidays and Sunday suppers.

Grocery List

• Produce: 2–3 medium sweet potatoes (about 1.5–2 lb), lemon (optional)
• Dairy: Unsalted butter, evaporated milk, heavy cream, eggs
• Pantry: All-purpose flour, granulated sugar, dark brown sugar, vanilla extract, fine sea salt, ground cinnamon, ground ginger, ground nutmeg, powdered sugar, apple cider vinegar (optional)

Full Ingredients

Tender Single-Crust Pie Dough (9-inch)

• 1 1/4 cups (150 g) all-purpose flour
• 1 tbsp (12 g) granulated sugar
• 1/2 tsp fine sea salt
• 1/2 cup (113 g) unsalted butter, very cold and diced
• 3–5 tbsp (45–75 ml) ice water
• 1 tsp apple cider vinegar (optional, for tenderness)

Silky Sweet Potato Filling

• 2 cups (450 g) mashed roasted sweet potato (from 2–3 medium potatoes, about 1.5–2 lb/680–900 g raw)
• 1/2 cup (100 g) dark brown sugar, packed
• 1/4 cup (50 g) granulated sugar
• 4 tbsp (56 g) unsalted butter, melted and cooled slightly
• 2 large eggs + 1 large egg yolk (reserve the extra egg white for crust wash)
• 3/4 cup (177 ml) evaporated milk
• 2 tsp pure vanilla extract
• 1 tsp ground cinnamon
• 1/2 tsp ground ginger
• 1/4 tsp ground nutmeg (freshly grated recommended)
• 1/2 tsp fine sea salt
• 1 tsp fresh lemon juice (optional, brightens flavor)

Softly Whipped Cream Topping

• 1 cup (240 ml) cold heavy cream
• 2 tbsp (15 g) powdered sugar
• 1/2 tsp vanilla extract
• Pinch fine sea salt
• Ground nutmeg or cinnamon, for dusting (optional)

Step-by-Step Instructions

Step 1: Roast the sweet potatoes

Heat the oven to 400°F (205°C). Scrub the sweet potatoes, pierce each a few times with a fork, and set on a parchment-lined baking sheet. Roast until completely tender and oozing a little syrup, 45–60 minutes depending on size. Cool just until you can handle them, then peel and mash until smooth. Measure 2 cups (450 g) mashed; set aside. Reduce oven to 375°F (190°C).

Step 2: Make the pie dough

In a bowl, whisk the flour, sugar, and salt. Cut in the cold butter with a pastry cutter or fingertips until pea-sized bits remain. Sprinkle in 3 tbsp ice water and the vinegar (if using). Toss with a fork; add just enough additional ice water for the dough to hold when pressed. Gather into a disk, wrap, and chill 1 hour (or up to 2 days).

Step 3: Roll, fit, and par-bake the crust

On a lightly floured surface, roll the dough to a 12-inch circle. Fit into a 9-inch pie dish, letting the dough overhang slightly; tuck and crimp. Freeze 15 minutes to firm. Line with parchment and fill with pie weights. Bake at 375°F (190°C) for 15 minutes. Remove weights and parchment; prick the bottom with a fork and bake 8–10 minutes more until barely golden and dry. Brush the hot shell with a little reserved egg white and bake 2 minutes to set a protective seal. Reduce oven to 350°F (175°C).

Step 4: Blend the filling until silky

In a large bowl (or food processor), whisk mashed sweet potato with brown sugar, granulated sugar, and melted butter until smooth. Whisk in the eggs and yolk until fully incorporated. Add evaporated milk, vanilla, cinnamon, ginger, nutmeg, salt, and lemon juice (if using). For an ultra-smooth custard, press the mixture through a fine-mesh sieve or blend 20–30 seconds.

Step 5: Fill the crust and bake

Pour the filling into the warm crust. Bake at 350°F (175°C) for 45–55 minutes, rotating once, until the edges are set and the center has a gentle wobble (an instant-read thermometer at the center should read 170–175°F/77–80°C). If the crust browns too quickly, shield the edges with foil. Do not overbake.

Step 6: Cool completely

Cool the pie on a wire rack until room temperature, at least 2 hours. For the cleanest slices, chill an additional 1–2 hours. Keep the pie uncut until fully cooled to avoid a gummy texture.

Step 7: Whip the cream and serve

In a chilled bowl, whip the heavy cream to soft peaks. Add powdered sugar, vanilla, and a pinch of salt; whip briefly to combine. Serve generous spoonfuls on cooled slices. Dust lightly with nutmeg or cinnamon if desired.

Pro Tips

• Roasting, not boiling, concentrates flavor and keeps the filling from turning watery.
• Measure 2 cups (450 g) mashed sweet potato for consistent texture and bake time.
• Straining the filling delivers that ultra-silky, custard-shop finish.
• Seal the par-baked crust with egg white to help it stay crisp under the custard.
• Pull the pie when the center still wobbles; it finishes setting as it cools.

Variations

• Brown Butter: Brown the 4 tbsp butter before adding; cool slightly. Adds nutty depth.
• Maple Note: Swap 2 tbsp granulated sugar for 2 tbsp pure maple syrup; reduce evaporated milk by 2 tbsp.
• Pecan Topping: Sprinkle 1/2 cup chopped toasted pecans over the pie after baking; press gently once cooled.

Storage & Make-Ahead

Cool completely, then cover and refrigerate up to 3–4 days. For longer storage, wrap tightly and freeze up to 2 months; thaw overnight in the refrigerator. The crust dough can be made 2 days ahead (or frozen 2 months). The par-baked shell can be wrapped and kept at room temperature up to 1 day. You can also mix the filling up to 24 hours ahead and refrigerate; whisk before pouring and baking. For serving, rewarm slices briefly at 300°F (150°C) for 8–10 minutes if you prefer them slightly warm. Whip the cream just before serving for the softest texture.

Nutrition (per serving)

Approximate values with whipped cream: 510 kcal; 28 g fat; 61 g carbohydrates; 35 g sugars; 6 g protein; 300 mg sodium; 3 g fiber.