Sweet Potato Custard Pie Filling

Jul 19, 2026 · By VanillaGoods

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A creamy, sliceable sweet potato custard pie filling for one 9-inch pie. Makes one 9-inch pie (8 servings).

Prep 20 min

Cook 15 min

Chill 4 hr

Total 4 hr 35 min

Servings 8

Diet —

Ingredients

Adjust yield

servings

2.0 cups (480.0 ml)whole milk
1.0 cup (240.0 ml)heavy cream
¾ cup (180.0 g)mashed sweet potato, smooth
1.0 tspground cinnamon
5.0 (90.0 g)large egg yolks
⅔ cup (133.0 g)granulated sugar
⅓ cup (43.0 g)cornstarch
¼ tspfine sea salt
2.0 tbsp (28.0 g)unsalted butter, cut into pieces
1.0fully baked 9-inch pie crust, cooled

Make it at home

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Instructions

In a medium saucepan, heat the milk and cream with the ground cinnamon over medium heat until steaming, about 5 minutes.
In a heatproof bowl, whisk the egg yolks, sugar, cornstarch, and salt until smooth.
Slowly whisk about half of the hot milk mixture into the yolks, then whisk everything back into the saucepan.
Cook over medium heat, whisking constantly, until the filling is very thick and bubbles steadily. Keep whisking for 1 minute more so it sets firmly and reaches at least 160°F.
Remove from the heat and whisk in the butter and mashed sweet potato until smooth. Strain through a fine-mesh sieve if you see any lumps.
Pour the filling into the crust and smooth the top.
Press plastic wrap directly onto the surface and refrigerate until cold and firm enough to slice, at least 4 hours or overnight.

Tips

Top with whipped cream just before serving.
Vanilla boost: add 1/2 to 1 teaspoon pure vanilla extract with the other flavorings for a rounder, warmer flavor.
Storage: Refrigerate, covered, for up to 3 days.

Recipe FAQ

How long does it take to make sweet potato custard pie filling?

Plan on 20 minutes of prep and 15 minutes of cooking, plus 4 hours to chill. It makes one 9-inch pie (8 servings).

How should I store sweet potato custard pie filling?

Refrigerate, covered, for up to 3 days.

A creamy, sliceable sweet potato custard pie filling for one 9-inch pie. Makes one 9-inch pie (8 servings).

Estimated · per serving

Nutrition

Per serving = 1 of 8 servings this recipe makes.

455 Calories / serving

28.1g Fat

45.0g Carbs

6.6g Protein

22.3g Sugar

Whole recipe (8 servings): ~3640 cal · 225g fat · 360g carbs · 53g protein · 178g sugar

Estimated values per serving, calculated from standard ingredient data. Not verified Nutrition Facts; actual values vary with brands, measurements, and preparation.

Per serving · 455 calories

What it takes to burn one serving

Brisk walking 86 min·5.0 mi·~10050 steps
Walking uphill or incline treadmill 62 min·3.1 mi·~6200 steps
Moderate cycling 46 min·9.2 mi
Swimming laps 64 min
Jogging 45 min·3.8 mi·~7200 steps
Stair climbing 42 min·~3800 steps
Dancing 74 min
Bodyweight circuit training 46 min
Cleaning, errands, or playing with the dog 106 min

Rough estimates for one serving, based on standard MET values at about 155 lb. Your own burn depends on body size, effort, and fitness. Shown for context only — food is not something you have to earn.