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Blueberry Lemon Custard Tart Recipe

Blueberry Lemon Custard Tart Recipe

Learn how to make this homemade Blueberry Lemon Custard Tart with the perfect balance of buttery shortcrust, tangy lemon custard, and sweet blueberries. This easy baking recipe features blind baking for the best crisp base and a foolproof custard technique that never fails.
Difficulty:
Intermediate
Prep Time:
40 mins
Cook Time:
55 mins
Serves:
1 tart (8 slices)
An overhead shot of a perfectly baked Blueberry Lemon Custard Tart captures its golden shortcrust edges against the pale yellow custard dotted with bursts of deep purple blueberries. A cross-section reveals the distinct layers—crisp pastry base, smooth lemon custard, and juicy blueberry topping. Bathed in soft natural light streaming through a nearby window, the tart sits on a white ceramic cake stand with scattered fresh blueberries and lemon slices artfully arranged around it. A light dusting of powdered sugar catches the light, while a sprig of fresh mint adds a pop of vibrant green against the yellow and purple palette. A silver cake server rests beside the tart, revealing the clean slice with perfectly set custard that holds its shape.

Ingredients

<ul class="ingredients-main-list"><li class="ingredients-single-item">For the Shortcrust Pastry:</li><li class="ingredients-single-item">200g plain flour</li><li class="ingredients-single-item">100g cold unsalted butter, cubed</li><li class="ingredients-single-item">30g icing sugar</li><li class="ingredients-single-item">1 large egg yolk</li><li class="ingredients-single-item">2-3 tbsp ice-cold water</li><li class="ingredients-single-item">Pinch of salt</li><li class="ingredients-single-item">For the Lemon Custard:</li><li class="ingredients-single-item">4 large eggs</li><li class="ingredients-single-item">150g caster sugar</li><li class="ingredients-single-item">Zest of 2 lemons</li><li class="ingredients-single-item">120ml fresh lemon juice (about 3-4 lemons)</li><li class="ingredients-single-item">150ml double cream</li><li class="ingredients-single-item">For the Blueberry Topping:</li><li class="ingredients-single-item">300g fresh blueberries</li><li class="ingredients-single-item">2 tbsp apricot jam (for glaze)</li><li class="ingredients-single-item">1 tbsp water</li><li class="ingredients-single-item">Icing sugar, for dusting (optional)</li></ul>

Equipment

<ul class="equipment-main-list"><li class="equipment-single-item">23cm (9-inch) loose-bottomed tart tin</li><li class="equipment-single-item">Baking beans or rice (for blind baking)</li><li class="equipment-single-item">Baking parchment</li><li class="equipment-single-item">Fine mesh sieve</li><li class="equipment-single-item">Food processor (optional, for pastry)</li></ul>
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Directions

<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>For the pastry, place the flour, butter, icing sugar and salt in a food processor and pulse until the mixture resembles fine breadcrumbs (or rub the butter into the dry ingredients by hand). This method keeps the butter cold, resulting in a flakier crust.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>Add the egg yolk and 2 tablespoons of ice-cold water, then pulse again until the dough just starts to come together. If it seems dry, add the remaining tablespoon of water. The dough should barely hold together when pinched – overworking causes tough pastry.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>Turn the dough onto a lightly floured surface, shape into a disc, wrap in cling film and refrigerate for at least 30 minutes. Chilling is crucial as it 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 200°C (180°C fan/Gas 6). Roll out the chilled pastry on a floured surface to about 3mm thickness, creating a circle approximately 4cm larger than your tart tin.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>Carefully line your tart tin with the pastry, pressing it gently into the fluted edges. Don't stretch the pastry as it will shrink back during baking. Trim the excess, leaving a small overhang to allow for shrinkage.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Prick the base with a fork, line with baking parchment, and fill with baking beans or rice. Blind bake for 15 minutes, then remove the beans and parchment and bake for another 5-7 minutes until the pastry is golden and crisp.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Reduce the oven temperature to 170°C (150°C fan/Gas 3). For the custard, whisk together the eggs and sugar until pale. Add the lemon zest and juice, whisking to combine, then stir in the cream. Pass the mixture through a fine-mesh sieve to ensure a silky-smooth custard.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>With the tart case still in the oven (to prevent spills), carefully pour in the custard mixture until it reaches just below the rim. The hot oven creates an immediate seal on the base, preventing a soggy bottom.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Bake for 25-30 minutes until the custard is just set with a slight wobble in the center. The custard will continue cooking from residual heat – removing it while slightly wobbly prevents cracks from over-baking.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Allow the tart to cool completely before topping with fresh blueberries, arranging them in concentric circles or scattering them artfully over the surface.</li><li class="MethodStepper"><h4 class="step-title">Step 11</h4>For the glaze, warm the apricot jam with 1 tablespoon of water in a small saucepan until melted and smooth. Pass through a sieve to remove any fruit pieces, then brush gently over the blueberries to give them an attractive shine and help preserve their freshness.</li><li class="MethodStepper"><h4 class="step-title">Step 12</h4>Refrigerate the tart for at least 1 hour before serving to allow the flavors to develop and the custard to set completely. Just before serving, dust lightly with icing sugar if desired. This tart is best enjoyed on the day it's made but will keep in the refrigerator for up to 2 days.</li></ol>

Nutrition Facts (per serving)

🍽️ Serving Size: 1 slice
🔥 Calories: 345 calories
🥑 Fat: 22 g
🧈 Saturated Fat: 13 g
🍞 Carbohydrates: 35 g
🍭 Sugar: 24 g
🍗 Protein: 5 g
🫀 Cholesterol: 165 mg
🧂 Sodium: 155 mg

Chef’s Notes

A few helpful details for making this recipe.

What ingredients are used in Blueberry Lemon Custard Tart?

This tart requires plain flour, unsalted butter, icing sugar, eggs, caster sugar, lemons, double cream, fresh blueberries, and apricot jam. The shortcrust pastry needs cold butter and ice water for the perfect crisp texture, while fresh lemons provide both zest and juice for the custard.

How to cook Blueberry Lemon Custard Tart at home?

Learn how to cook Blueberry Lemon Custard Tart by first preparing a buttery shortcrust pastry, blind baking it until golden, then filling it with a silky lemon custard made from eggs, sugar, lemon juice and cream. After baking until just set with a slight wobble, top with fresh blueberries and finish with a glossy apricot jam glaze before chilling.

How can I prevent my lemon custard tart from cracking during baking?

The secret is to remove the tart from the oven while the centre still has a slight wobble—it will continue to set as it cools. Bake at a moderate temperature (150-170°C), avoid opening the oven door frequently, and cool gradually at room temperature before refrigerating to prevent shocking the custard.

What's the secret to a perfectly crisp tart base that doesn't go soggy?

The key is thorough blind baking—line your pastry with parchment and baking beans, bake until golden, and allow to cool slightly before adding fillings. Pour in the warm custard while the case is still in the oven to create an immediate seal, and ensure your pastry is sufficiently chilled before baking.

Can I use frozen blueberries instead of fresh for a fruit tart?

Fresh blueberries work best as toppings for custard tarts as they hold their shape and don't release excess moisture. If using frozen, thaw and thoroughly drain them first, then pat dry with paper towels. Alternatively, consider cooking frozen berries with a little sugar and cornflour to create a jammy topping instead.

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