For the dough
1. Put the flour salt and butter into small pieces in a bowl. Crumble with your fingertips. Pour the water. Knead lightly so that the dough is homogeneous and form a ball.
2. Let it rest for 30 minutes in the fridge before using it then roll it out press it into a mold and prick the bottom with a fork.
3. Bake it blind for 15 to 20 minutes at 180°C (350°F).
For garnish
4. Dissolve the cornstarch in 5 cl of water. In a bowl mix the eggs with the yolks and the sugar. Stir in lemon juice zest and cornstarch.
5. Pour this mixture into a saucepan and bring to a boil. Leave to simmer for 2 to 3 minutes until the cream thickens. Add the butter off the heat.
6. Spread the cream over the cooled pie crust.
For the meringue
7. Beat the egg whites with a pinch of salt. Add the sugar little by little.
8. Using a piping bag spread the meringue over the pie and bake for 10 minutes at 180°C to obtain a soft meringue.
