Start by making the crust. On a clean surface, mix the flour and sugar. Rub in the softened butter with your fingers until the mixture looks like fine breadcrumbs.
Add the egg yolks one by one, kneading gently until it forms a smooth dough. Don’t overwork it or the crust might get tough.
Shape the dough into a disc, wrap it in cling film, and chill it in the fridge for at least 30 minutes.
While the dough chills, preheat your oven to 350°F (180°C).
Roll out the chilled dough on a floured surface to about ⅛ inch thick. Use it to line a 9-inch tart tin, pressing it into the edges. Trim off any excess.
Prick the base with a fork and place parchment paper on top. Fill the tart with baking beans or rice to keep the crust from puffing up.
Bake the crust blind for 15 minutes. Remove the beans and parchment, then bake for another 5 minutes until golden.
Meanwhile, whisk the eggs and sugar in a large bowl until thick and pale. Stir in the lemon juice, zest, and heavy cream until smooth.
Pour the lemon filling into the baked crust carefully.
Bake the tart for 25-30 minutes until the filling is set but still slightly wobbly in the center.
Let the tart cool completely. Then spread the lemon curd over the top. Scoop out the passion fruit pulp and scatter it across the tart for a fresh, tangy finish.
Slice and serve your lemon tart as a fresh, zingy dessert.