Tarte au citron is another one of those classic puds for which countless different recipes exist. Many begin by making a lemon curd for the filling, but the method here is a lot simpler, and just as good as any curd-based tart. Photo by Simon Wheeler.
Prep 1hrs Cook 30mins
To make the pastry, put the flour, icing sugar and salt in a food processor and blitz briefly (or sift into a bowl).
Add the butter and blitz (or rub in with your fingertips) until the mixture resembles breadcrumbs.
Add the egg yolk and just enough milk or water to bring the mix together into large clumps.
Tip on to a lightly floured surface and knead lightly into a ball.
Wrap in cling film and chill for 30 minutes.
For the filling, finely grate the zest from 3 lemons.
Juice these and 2 or 3 more lemons, then strain the juice into a measuring jug – you need at least 175ml lemon juice, and up to 200ml.
Whisk the eggs, egg yolks and sugar together in a bowl until well blended, then stir in the lemon zest and juice.
Leave to stand for about 10 minutes, then whisk one more time.
Leave for another 10 minutes.
Preheat the oven to 180°C/Gas 4.
Roll out the pastry fairly thinly and use it to line a 24cm tart tin, letting the excess hang over the sides.
Prick the base with a fork.
Line with baking parchment and ceramic baking beans (or dried beans or lentils), stand the tin on a baking sheet and bake for 15 minutes.
Remove the parchment and beans and bake for about 10 minutes more, until the pastry looks cooked – crispy, and very lightly golden.
Trim the excess pastry from the sides. Reduce the oven setting to 150°C/Gas 2.
Strain the filling into a clean bowl, skim off any surface froth, and stir in the cream until well combined.
Carefully pour into the tart case.
Bake for 30–35 minutes, or until barely set, with a slight wobble in the centre.
Leave to cool completely before serving, lightly dusted with icing sugar.
For the sweet shortcrust pastry:
- 200g plain flour
- 35g icing sugar
- A pinch of salt
- 125g cold, unsalted butter, cut into cubes
- 1 free-range egg yolk
- About 2-3 tablespoons cold milk (or water)
For the filling
- 5-6 medium-large, juicy lemons
- 4 large free-range eggs, plus 4 extra egg yolks
- 250g caster sugar
- 150ml double cream
- Icing sugar, for dusting
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