Kumquat Pie Recipe

Tangy kumquats nestled in a sweet custard filling create a perfect harmony of bright citrus and silky textures beneath a golden, flaky crust.
Difficulty:
Intermediate
Prep Time:
45 mins
Cook Time:
50 mins
Serves:
1 pie (8 slices)
An overhead shot of a perfectly baked kumquat pie with a golden-brown lattice crust, revealing glimpses of the vibrant orange kumquat segments suspended in a glossy custard. The pie sits on a vintage blue ceramic plate against a neutral linen tablecloth, with soft natural light streaming from the side to highlight the caramelized edges and flaky texture of the pastry. Scattered around are fresh kumquats with their leaves attached, a dusting of powdered sugar, and a small jar of honey. A slice has been removed, showcasing the perfect set of the custard and the defined layers of the filling, with a fork resting nearby bearing a perfect bite.

Ingredients

<ul class="ingredients-main-list"> <li class="ingredients-single-item">450g fresh kumquats, washed and sliced into thin rounds (seeds removed)</li> <li class="ingredients-single-item">200g granulated sugar</li> <li class="ingredients-single-item">4 large eggs</li> <li class="ingredients-single-item">120ml fresh lemon juice</li> <li class="ingredients-single-item">60g unsalted butter, melted</li> <li class="ingredients-single-item">2 tbsp kumquat zest (or orange zest)</li> <li class="ingredients-single-item">1 tsp vanilla extract</li> <li class="ingredients-single-item">1/4 tsp salt</li> <li class="ingredients-single-item">For the crust:</li> <li class="ingredients-single-item">250g all-purpose flour</li> <li class="ingredients-single-item">1 tbsp granulated sugar</li> <li class="ingredients-single-item">1/2 tsp salt</li> <li class="ingredients-single-item">170g cold unsalted butter, cubed</li> <li class="ingredients-single-item">60-75ml ice-cold water</li> <li class="ingredients-single-item">1 egg (for egg wash)</li> <li class="ingredients-single-item">1 tbsp demerara sugar (for sprinkling)</li> </ul>

Equipment

<ul class="equipment-main-list"> <li class="equipment-single-item">23cm (9-inch) pie dish</li> <li class="equipment-single-item">Rolling pin</li> <li class="equipment-single-item">Pastry blender (or food processor)</li> <li class="equipment-single-item">Fine mesh sieve</li> <li class="equipment-single-item">Citrus zester</li> <li class="equipment-single-item">Pie weights or dried beans</li> </ul>
BAKE SMARTER

Kitchen Converter

Quickly switch between common baking units without leaving the recipe.

Convert
Result—

Volume uses US cups, tablespoons, and teaspoons. Converting weight to volume depends on the ingredient.

Directions

<ol class="no-list-style"> <li class="MethodStepper"> <h4 class="step-title">Step 1</h4> Prepare the kumquats by slicing them thinly (about 2-3mm) and carefully removing all seeds. The thin slicing is crucial as kumquat peels are edible but can be bitter if too thick. Place the slices in a bowl and toss with 50g of the sugar. Let them macerate for 30 minutes to draw out some bitterness and soften the fruit. This maceration process is essential for balancing the natural tartness of kumquats. </li> <li class="MethodStepper"> <h4 class="step-title">Step 2</h4> While the kumquats macerate, prepare your pie crust. In a large bowl, whisk together the flour, sugar, and salt. Add the cold cubed butter and use a pastry blender to cut it into the flour until the mixture resembles coarse crumbs with some pea-sized pieces remaining. Cold butter creates steam pockets during baking, resulting in those desirable flaky layers. </li> <li class="MethodStepper"> <h4 class="step-title">Step 3</h4> Gradually add the ice water to the flour mixture, 1 tablespoon at a time, mixing gently with a fork until the dough just begins to come together. You may not need all the water – stop when the dough holds together when pinched. Divide the dough into two portions (one slightly larger than the other), shape into discs, wrap in plastic wrap, and refrigerate for at least 1 hour. Chilling relaxes the gluten and firms up the butter, preventing shrinkage during baking. </li> <li class="MethodStepper"> <h4 class="step-title">Step 4</h4> Preheat your oven to 190°C (375°F). Remove the larger disc of dough from the refrigerator and let it sit for 5-10 minutes to slightly soften. On a lightly floured surface, roll it out to a 30cm circle about 3mm thick. Transfer carefully to your pie dish, gently pressing it into the corners without stretching. Trim the edges leaving a 2cm overhang. Return to the refrigerator while preparing the filling. </li> <li class="MethodStepper"> <h4 class="step-title">Step 5</h4> In a large bowl, whisk together the eggs, remaining 150g sugar, lemon juice, melted butter, kumquat zest, vanilla extract, and salt until well combined. Drain any excess liquid from the macerated kumquats (reserve this flavorful syrup for cocktails or tea sweetener) and fold the kumquat slices into the egg mixture, distributing them evenly. </li> <li class="MethodStepper"> <h4 class="step-title">Step 6</h4> Remove the pie shell from the refrigerator and pour in the kumquat filling. Roll out the second disc of dough and either create a lattice top or cut decorative vents if using as a full top crust. If using a full top crust, brush the edge of the bottom crust with water before sealing with the top crust to ensure it doesn't separate during baking. Trim and crimp the edges decoratively. </li> <li class="MethodStepper"> <h4 class="step-title">Step 7</h4> Lightly beat an egg with 1 tablespoon of water and brush this egg wash over the top crust. This creates that beautiful golden-brown shine during baking. Sprinkle with demerara sugar for a professional-looking sparkle and extra crunch. Place the pie on a baking sheet (to catch any overflow) and bake on the middle rack for 20 minutes. </li> <li class="MethodStepper"> <h4 class="step-title">Step 8</h4> Reduce the oven temperature to 175°C (350°F) and continue baking for 30-35 minutes more, until the crust is deeply golden and the filling is just set but still has a slight wobble in the center. If the crust edges brown too quickly, cover them with foil or a pie crust shield. The filling will continue to set as it cools, so don't overbake or you'll lose the silky texture. </li> <li class="MethodStepper"> <h4 class="step-title">Step 9</h4> Allow the pie to cool completely on a wire rack for at least 4 hours before slicing – patience is key for clean slices! This resting time allows the custard to fully set and the flavors to meld beautifully. Serve at room temperature or chilled with a dollop of lightly whipped cream to balance the brightness of the kumquats. The pie will keep, covered in the refrigerator, for up to 3 days. </li> </ol>

Nutrition Facts (per serving)

🍽️ Serving Size: 1 serving
🔥 Calories: 345 calories
🥑 Fat: 18 g
🧈 Saturated Fat: 9 g
🍞 Carbohydrates: 32 g
🍭 Sugar: 3 g
🍗 Protein: 15 g
🫀 Cholesterol: 85 mg
🧂 Sodium: 480 mg

Chef’s Notes

A few helpful details for making this recipe.

Why do you need to macerate the kumquats before adding them to the pie filling?

Macerating kumquats in sugar for 30 minutes is crucial as it draws out bitterness from the peels, softens the fruit, and balances their natural tartness. This step ensures the kumquats blend harmoniously with the sweet custard and prevents an overly bitter or tough texture in the finished pie.

What's the secret to achieving that perfect flaky pie crust?

The secret lies in using very cold butter and minimal handling. The cold butter creates steam pockets during baking that form flaky layers. Chilling the dough relaxes the gluten and firms the butter, preventing shrinkage. Work quickly and avoid overworking the dough for the best texture.

Can I use other citrus fruits if kumquats aren't available?

Yes, you can substitute kumquats with other citrus like Meyer lemons, mandarins, or blood oranges. For larger fruits, cut them into smaller segments and adjust the sugar to accommodate differences in tartness. Remember that kumquat peels are edible, so consider peeling other citrus varieties.

Want to try something else in ...

More recipes you might like

Keep exploring with more recipes from What's Baking.