Quick Recipe Version (TL;DR)
Quick Ingredients
- 1 unbaked 9-inch flaky pie crust (homemade or store-bought)
- 1 1/2 cups (170 g) walnut halves or pieces
- 1 cup (320 g) pure maple syrup
- 1/4 cup (50 g) packed light brown sugar
- 4 tablespoons (56 g) unsalted butter
- 3/4 cup (180 ml) heavy cream
- 1/4 cup (60 ml) whole milk
- 3 large eggs
- 1 large egg yolk
- 1 tablespoon (8 g) cornstarch
- 2 teaspoons vanilla extract
- 1/2 teaspoon fine salt
Do This
- 1. Heat oven to 375°F (190°C). Toast walnuts 8–10 minutes; cool.
- 2. Blind-bake crust: line, fill with pie weights, bake 15 minutes; remove weights and bake 10 minutes more.
- 3. Reduce oven to 350°F (175°C).
- 4. Warm maple syrup, brown sugar, butter, cream, milk, and salt just until steaming (do not boil).
- 5. Whisk eggs, yolk, and cornstarch; slowly whisk in warm maple mixture, then vanilla. Fold in toasted walnuts.
- 6. Pour into warm crust; bake 40–45 minutes until edges are set and center wobbles slightly. Cool 2 hours before slicing (chill for cleaner slices).
Why You’ll Love This Recipe
- Deep maple flavor: Pure maple syrup creates a rich caramel-like custard without being cloying.
- Perfect texture: Silky custard with toasted walnuts for a warm, nutty bite in every slice.
- Approachable for home bakers: Straightforward steps with a blind-bake that keeps the crust crisp.
- Autumn-ready: Cozy vanilla-maple aroma and a golden, set filling that slices beautifully.
Grocery List
- Produce: None (optional: 1 orange for zest)
- Dairy: Unsalted butter, heavy cream, whole milk, eggs
- Pantry: Unbaked 9-inch pie crust, pure maple syrup, light brown sugar, walnuts, cornstarch, vanilla extract, fine salt
Full Ingredients
For the crust
- 1 unbaked 9-inch pie crust, fitted into a 9-inch pie dish and crimped (homemade or store-bought)
- Pie weights or dried beans, enough to fill the crust (for blind baking)
For the toasted walnuts
- 1 1/2 cups (170 g) walnut halves or pieces
For the maple custard filling
- 1 cup (320 g) pure maple syrup (not pancake syrup)
- 1/4 cup (50 g) packed light brown sugar
- 4 tablespoons (56 g) unsalted butter
- 3/4 cup (180 ml) heavy cream
- 1/4 cup (60 ml) whole milk
- 1/2 teaspoon fine salt
- 3 large eggs, at room temperature
- 1 large egg yolk, at room temperature
- 1 tablespoon (8 g) cornstarch
- 2 teaspoons vanilla extract
Optional for serving
- Lightly sweetened whipped cream
- A few extra toasted walnut pieces
- A very small drizzle of maple syrup
Step-by-Step Instructions
Step 1: Prep your oven and toast the walnuts
Place a rack in the center of the oven and preheat to 375°F (190°C). Spread the walnuts on a rimmed baking sheet in a single layer.
Toast for 8–10 minutes, stirring once halfway through, until they smell nutty and look slightly darker. Set aside to cool while you blind-bake the crust.
Step 2: Blind-bake the crust for a crisp bottom
Keep the oven at 375°F (190°C). Line the chilled, shaped crust with parchment paper (or foil), making sure it covers the bottom and sides. Fill completely with pie weights or dried beans (this helps prevent slumping).
Bake for 15 minutes. Carefully remove the parchment and weights, then bake the crust for 10 minutes more, until the bottom looks dry and just barely starting to turn pale golden.
Reduce the oven temperature to 350°F (175°C). Leave the crust on a baking sheet (it’s easier and safer to move a filled pie).
Step 3: Warm the maple mixture (do not boil)
In a medium saucepan over medium heat, combine the maple syrup, brown sugar, butter, heavy cream, whole milk, and salt. Stir frequently until the butter melts and the mixture is steaming and smooth.
Stop heating when you see gentle steam and tiny bubbles at the edges. You do not want a full boil, which can make the eggs harder to temper and increase the risk of a curdled texture later.
Step 4: Whisk the eggs and cornstarch, then temper
In a large bowl, whisk together the whole eggs, egg yolk, and cornstarch until completely smooth (no lumps). This takes about 30–45 seconds of steady whisking.
While whisking constantly, slowly drizzle in about 1/2 cup of the warm maple mixture to temper the eggs. Then, still whisking, gradually pour in the rest of the warm mixture.
Whisk in the vanilla extract.
Step 5: Add the toasted walnuts and fill the crust
Fold the toasted walnuts into the custard. Pour the filling into the warm par-baked crust. If a few walnuts float, that’s perfect (it creates a pretty top).
Set the pie (still on the baking sheet) into the oven at 350°F (175°C).
Step 6: Bake until set with a gentle wobble
Bake for 40–45 minutes, rotating the pie halfway through, until the edges are set and puffed and the center still has a small wobble (about a 2–3 inch wobble in the very middle).
If you like using a thermometer, the center should read about 175°F (79°C). If the crust edges are browning too quickly, loosely tent the edges with foil for the last 10–15 minutes.
Step 7: Cool fully so the custard slices cleanly
Cool the pie on a rack at room temperature for 2 hours to set. For the cleanest slices, refrigerate for an additional 1 hour before cutting.
Slice with a sharp knife, wiping the blade clean between cuts. Serve plain or with softly whipped cream and a few extra toasted walnuts.
Pro Tips
- Use pure maple syrup: It’s the main flavor. Dark or robust grade maple syrup gives the deepest caramel notes.
- Don’t skip the blind-bake: A partially baked crust is the best defense against a soggy bottom with custard pies.
- Temper slowly: Pouring the warm liquid in gradually while whisking prevents scrambled eggs and keeps the filling silky.
- Watch the wobble: The center should jiggle slightly when you nudge the pie; it will continue to set as it cools.
- Toast walnuts for better flavor: Raw walnuts can taste flat; toasting adds depth and keeps them pleasantly crunchy.
Variations
- Bourbon maple walnut pie: Add 1 tablespoon (15 ml) bourbon with the vanilla for a warm, oaky finish.
- Orange-maple twist: Add 1 teaspoon finely grated orange zest to the custard right before pouring.
- Pecan swap: Replace walnuts with 1 1/2 cups (170 g) toasted pecans for a classic-style nut pie vibe.
Storage & Make-Ahead
Cover and refrigerate leftover pie for up to 4 days. For best texture, let slices sit at room temperature for 15–20 minutes before serving.
Make-ahead options: You can toast the walnuts up to 3 days ahead (store airtight at room temperature). The entire pie can be baked 1 day ahead; cool completely, then refrigerate and slice the next day for super-clean wedges.
Nutrition (per serving)
Approximate, based on 8 servings: 520 calories, 33 g fat, 53 g carbohydrates, 6 g protein, 40 g sugar, 2 g fiber, 220 mg sodium.
