Description
The Mary Berry Citron Tart is a lemon-flavored tart featuring a sweet shortcrust pastry base filled with a rich lemon custard. The filling is made with fresh lemon juice, zest, eggs, sugar, and cream, and baked until just set and slightly wobbly in the center. It’s a delightful balance of tangy and sweet, with a creamy texture that contrasts beautifully with the crisp pastry shell.
Ingredients
For the Sweet Shortcrust Pastry:
- 
Plain flour – 175g (1¼ cups) 
- 
Cold unsalted butter – 100g (cubed) 
- 
Icing sugar – 25g (2 tablespoons) 
- 
Egg yolk – 1 
- 
Cold water – 2–3 tablespoons 
For the Lemon Filling:
- Large eggs – 4
- 
Caster sugar – 150g (¾ cup) 
- 
Double cream – 150ml (scant ⅔ cup) 
- 
Lemon zest – from 2 lemons 
- 
Fresh lemon juice – 120ml (about 2–3 lemons) 
Instructions
Step 1: Make the Pastry
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Mix flour and butter: Rub the butter into the flour using your fingertips until it resembles breadcrumbs. 
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Add sugar and egg yolk: Mix in icing sugar, then egg yolk and cold water until a soft dough forms. 
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Chill dough: Wrap in cling film and refrigerate for 20–30 minutes. 
Step 2: Prepare the Tart Shell
- 
Preheat oven to 200°C (180°C fan) or 400°F. 
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Roll out the pastry on a lightly floured surface to about 3mm thick. 
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Line the tart tin and press gently into the edges. Trim excess. 
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Chill again for 10 minutes to prevent shrinkage. 
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Blind bake: Line with parchment, fill with baking beans, and bake for 12 minutes. 
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Remove beans and bake for another 5–7 minutes until lightly golden. Cool slightly. 
Step 3: Make the Lemon Filling
- 
Whisk eggs and sugar in a bowl until smooth. 
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Add cream, lemon zest, and juice: Whisk gently until combined. 
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Strain through a sieve to ensure a silky finish. 
Step 4: Fill and Bake
- 
Reduce oven to 160°C (140°C fan) or 320°F. 
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Pour filling into warm pastry case. 
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Bake for 25–30 minutes or until just set with a slight wobble in the center. 
Step 5: Cool and Serve
- 
Let the tart cool completely in the tin. 
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Chill in the fridge for at least 1 hour before serving. 
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Dust with icing sugar or decorate with berries if desired. 
