Lime meringue tartlets

Pastry

• 1 egg
• 50 g caster sugar
• 120 g unsalted butter cut into pieces
• 1 lime zest only (no white pith)
• 220 g plain flour

Lime curd

• 3 fresh limes juice only (approx. 60 g)
• 120 g caster sugar
• 60 g unsalted butter cut into pieces
• 3 egg yolks
• 1 tsp cornflour

Meringue

• 3 egg whites room temperature
• 100 g icing sugar (see Tips)
• ½ tsp vanilla bean paste
• ¼ tsp cream of tartar