For the pastry:
- 225g plain flour
- 2tbsp caster sugar
- 1/2tsp salt
- 120g cold Unsalted Lurpak butter, cubed
- 1 egg yolk
- 2tbsp cold water
For the filling:
- Zest of 3 lemons, juice of 6 (about 200ml)
- 50ml water
- 25g cornflour
- 175g caster sugar
- 3 egg yolks
- 25g Unsalted Lurpak butter
For the meringue:
- 4 egg whites
- 225g caster sugar
- 2 tsp cornflour
- Zest of 1 lemons
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You will need a 20 or 22cm tart tin. Preheat your oven to 180°C/160°C fan/gas mark 4