
Generously grease a mini cupcake tray with butter.
Unroll both packs of shortcrust pastry and use a 2-inch round cutter (or the rim of a glass) to stamp out circles.
Press the pastry cases into the mini cupcake tray and prick the bottom with a fork.
Place the tray in the fridge for 1 hour.
Preheat the oven to 180°C fan / 200°C conventional and bake for 15 minutes until light golden brown.
Cool for 10 minutes, then release the cases and cool completely on a wire rack.
In a medium saucepan, combine lemon zest and juice, caster sugar, and butter.
Stir over medium-low heat until butter melts and sugar dissolves.
Whisk the eggs in a jug and pour into the saucepan, whisk to combine.
Increase heat and whisk continuously until thickened.
Strain the curd into a bowl and let it cool for 10 minutes.
Dust pastry cases with icing sugar and fill with lemon curd to the top.
Chill in the fridge until ready to serve.